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In poly[[μ2-1,2-bis­(pyridin-4-yl)ethene-κ2N:N′][μ2-2,2′-(di­az­ene­diyl)dibenzoato-κ3O,O′:O′′]cadmium(II)], [Cd(C14H8N2O4)(C12H10N2)]n, the asymmetric unit contains one CdII cat­ion, one 2,2′-(diazene­diyl)dibenzoate anion (denoted L2−) and one 1,2-bis­(pyridin-4-yl)ethene ligand (denoted bpe). Each CdII centre is six-coordinated by four O atoms of bridging/chelating carboxyl­ate groups from three L2− ligands and by two N atoms from two bpe ligands, forming a distorted octa­hedron. The CdII cations are bridged by L2− and bpe ligands to give a two-dimensional (4,4) layer. The layers are inter­linked through bridging carboxyl­ate O atoms from L2− ligands, generating a two-dimensional bilayered structure with a 3641362 topology. The bilayered structures are further extended to form a three-dimensional supra­molecular architecture via a combination of hydrogen-bonding and aromatic stacking inter­actions.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S2053229613034591/fn3160sup1.cif
Contains datablocks I, global

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S2053229613034591/fn3160Isup2.hkl
Contains datablock I

CCDC reference: 978644

Introduction top

The synthesis and design of novel coordination polymers currently attract considerable attention, due to their intriguing structural diversity and their potential applications as functional materials (Kong et al., 2013; Schoedel et al., 2013; Tan et al., 2012; Liao et al., 2012; Horcajada et al., 2008). Generally, the organization of such materials is dependent on many factors, such as the metal ion, the nature of the organic ligands, the pH value, solvent, temperature and counterion, and the number of coordination sites provided by the organic ligands (Lee et al., 2010; Han et al., 2010; Horike et al., 2009; Liu et al., 2012). The most important of these factors is the choice of ligand. Ligands containing different functional groups, including pyridine, triazole and carb­oxy­lic acid, are frequently chosen to regulate the structural assembly, thus affording various coordination systems from discrete to infinite one-, two- and three-dimensional polymeric frameworks.

To date, flexible azo­benzene–di­carb­oxy­lic ligands have been employed as bridging ligands for the construction of functional metal–organic frameworks (MOFs) (Cairns et al., 2008; Lee et al., 2008; Bhattacharya et al., 2011; Yang et al., 2011; Liu et al., 2011; Liu et al., 2013 or Liu & Zhao, 2013 ?). For example, Yaghi and co-workers reacted 4,4'-(diazenediyl)di­benzoic acid (H2L1) with Tb(NO3)3.5H2O and obtained an inter­penetrating network of {Tb2(L1)3[(CH3)2SO]4.16[(CH3)2SO]}n with a large free volume (Reineke et al., 2000). Recently, our group has synthesized a series of two- and three-dimensional CdII coordination polymers based on 3,3'-(diazenediyl)di­benzoic acid through regulating the reaction solvent and temperature (Liu et al., 2013 or Liu & Zhao, 2013 ?). However, to the best of our knowledge, studies of the coordination chemistry of 2,2'-(diazenediyl)di­benzoic acid (H2L) have attracted little attention. Furthermore, it is known that a mixed-ligand system consisting of two types ligands provides more variability to construct different topologies (Du et al., 2013). One of the most fruitful choices has been the combination of various carb­oxy­lic acids and neutral pyridine-containing auxiliary ligands, where the carb­oxy­lic acid ligands balance the positive charge of the metal centre and develop secondary building units, while the auxiliary ligands increase the dimensionality or supply additional structural versatility. Taking this into account, we reacted Cd(OAc)2.2H2O with H2L and 1,2-bis­(pyridin-4-yl)ethene (bpe), producing the title compound, [CdL(bpe)]n, (I).

Experimental top

Synthesis and crystallization top

H2L was prepared according to the literature method of Reid & Pritchett (1953). All other chemicals and reagents were obtained from commercial sources (Alfa Aesar) and used as received. A mixture of Cd(OAc)2.2H2O (13 mg, 0.05 mmol), H2L (7 mg, 0.025 mmol), bpe (5 mg, 0.025 mmol), 0.010 M NaOH (0.3 ml) and H2O (4 ml) was sealed in a 10 ml Pyrex glass tube and heated at 393 K for 4 d, then cooled to room temperature at a rate of 5 K h-1. Pink blocks of (I) were collected and washed thoroughly with H2O and dried in air (yield 7 mg, 50%, based on H2L). Spectroscopic analysis: IR (KBr disc, ν, cm-1): 3386 (m), 3300 (m), 3059 (w), 2932 (w), 1607 (s), 1592 (s), 1381 (s), 1254 (w), 1135 (w), 1098 (m), 1014 (w), 965 (m), 826 (m), 778 (m), 770 (m), 661 (m), 586 (m), 479 (w), 416 (w).

Refinement top

Crystal data, data collection and structure refinement details are summarized in Table 1. All H atoms were placed in the geometrically idealized positions, with C—H = 0.93 Å for phenyl and pyridine H atoms, and constrained to ride on their parent atoms, with Uiso(H) = 1.2Ueq(C).

Results and discussion top

The title polymer, (I), crystallizes in the monoclinic space group P21/n and its asymmetric unit contains one [CdL(bpe)] unit. As shown in Fig. 1, each CdII cation is in a six-coordinate geometry formed by four carboxyl­ate O atoms from three L2- ligands and two N atoms from two bpe ligands to form a distorted o­cta­hedron. There is one weak inter­action [2.7317 (17) Å] between atoms Cd1 and O4ii (see Fig. 1 for symmetry code). See Table 2 for further bond lengths and angles.

In the structure of (I), each L2- ligand serves as a bridging ligand, linking adjacent CdII centres to generate a one-dimensional [CdL]n chain extending along the a axis (Fig. 2), with a Cd···Cd separation of 11.417 (2) Å. Each chain is connected to adjacent chains via bpe ligands to form a two-dimensional (4,4) layer (extending along the ac plane), with parallelogram-shaped meshes (11.417 × 13.953 Å2) (Fig. 3). The two-dimensional layers are further inter­linked via bridging carboxyl­ate O atoms from L2- ligands, resulting in a two-dimensional bilayered structure lying parallel to the ac plane (Fig. 4). Topologically (Wells, 1997), if the CdII centres are considered as nodes and the L2- and bpe ligands are considered as linkers, the bilayer structure of (I) can be specified by a Schläfli symbol of 3641362 (Fig. 5).

Atom O4 of the carboxyl­ate group acts as an acceptor and inter­acts with the H atom of benzene atom C11 in an adjacent network, forming an inter­molecular hydrogen bond (C11—H11···O4i; see Table 3 for symmetry code). These hydrogen-bonding inter­actions join the two-dimensional bilayer structures to generate a three-dimensional hydrogen-bonded motif in the bc plane (Fig. 6). The structure is also stabilized by ππ stacking inter­actions between the pyridine (atoms N3/C15–C19) and benzene (atoms C2–C7) rings, with a centroid-to-centroid distance of 3.7021 (16) Å. The dihedral angle α defined by the stacked rings is 17.11 (12)°, and the slippage angles are β = 27.08° and γ = 10.66° (Fig. 6).

As reported previously (Chen et al., 2007), a ZnII coordination polymer assembled from 4,4'-(diazenediyl)di­benzoic acid (H2L1) and bpe has been investigated, viz. {[Zn(L1)(bpe)0.5].2.5DMF.0.5H2O}n, (II), and shows a three-dimensional coordination framework. In (I), the L2- ligands adopt both bridging and chelating coordination modes and link the CdII centres in the [100] direction, producing a one-dimensional chain. These chains are further bridged by bpe ligands, resulting in a two-dimensional layer. In (II), the Zn2 units are bridged by L12- ligands (bridging coordination mode) in two directions to form a two-dimensional (4,4) network and further pillared by bpe to form a three-dimensional triply inter­penetrated structure. Such differences indicate that ligand geometry and choice of metal greatly affect the resulting motifs of coordination polymers.

In summary, reaction of Cd(OAc)2.2H2O with 2,2'-(diazenediyl)di­benzoic acid and 1,2-bis­(pyridin-4-yl)ethene in H2O affords the title complex under hydro­thermal conditions. The compound displays a rare two-dimensional bilayered structure with a 3641362 topology. The three-dimensional supra­molecular architecture is produced via hydrogen-bonding and aromatic stacking inter­actions.

Related literature top

For related literature, see: Bhattacharya et al. (2011); Cairns et al. (2008); Chen et al. (2007); Du et al. (2013); Han et al. (2010); Horcajada et al. (2008); Horike et al. (2009); Kong et al. (2013); Lee et al. (2008, 2010); Liao et al. (2012); Liu & Zhao (2013); Liu et al. (2011, 2012); Reid & Pritchett (1953); Reineke et al. (2000); Schoedel et al. (2013); Tan et al. (2012); Wells (1997); Yang et al. (2011).

Computing details top

Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2003); data reduction: SAINT (Bruker, 2003); program(s) used to solve structure: SHELXL2013 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: XP (Sheldrick, 2008) and DIAMOND (Brandenburg, 1999); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).

Figures top
Fig. 1. The coordination environment of the Cd atom in (I), showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. The dashed line represents the weak interaction between atoms Cd1 and O4ii. [Symmetry codes: (ii) x + 1, y, z; (iii) x, y, z - 1; (iv) -x + 1, -y + 1, -z + 1.]

Fig. 2. A view of the one-dimensional coordination chain of (I), linked via bridging L2- ligands.

Fig. 3. A view of the two-dimensional (4,4) layer of (I), extending along the ac plane. All H atoms have been omitted for clarity.

Fig. 4. A view of the two-dimensional bi-layered structure of (I), extending along the ac plane. All H atoms have been omitted for clarity.

Fig. 5. A view of the topological structure of (I). Turquoise balls represent 7-connected nodes and purple lines represent linkers of L2- and bpe ligands.

Fig. 6. A view of the three-dimensional supramolecular structure of (I), formed via hydrogen bonding and aromatic stacking interactions. Adjacent layers are shown in different colours. Red dashed lines represent hydrogen bonds and blue dashed lines indicate aromatic stacking interactions. All H atoms except those related to hydrogen-bonding interactions have been omitted for clarity.
Poly[[µ2-1,2-bis(pyridin-4-yl)ethene-κ2N:N'][µ2-2,2'-(diazenediyl)dibenzoato-κ3O,O':O'']cadmium(II)] top
Crystal data top
[Cd(C14H8N2O4)(C12H10N2)]F(000) = 1128
Mr = 562.84Dx = 1.692 Mg m3
Monoclinic, P21/nMo Kα radiation, λ = 0.71073 Å
a = 11.417 (2) ÅCell parameters from 9920 reflections
b = 15.127 (3) Åθ = 2.4–28.4°
c = 13.953 (3) ŵ = 1.03 mm1
β = 113.56 (3)°T = 296 K
V = 2208.8 (9) Å3Block, pink
Z = 40.20 × 0.15 × 0.15 mm
Data collection top
Bruker APEXII CCD area-detector
diffractometer
4476 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.032
φ and ω scansθmax = 28.4°, θmin = 2.1°
Absorption correction: multi-scan
(SADABS; Bruker, 2003)
h = 1515
Tmin = 0.830, Tmax = 0.857k = 1920
29346 measured reflectionsl = 1818
5546 independent reflections
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.027Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.065H-atom parameters constrained
S = 1.03 w = 1/[σ2(Fo2) + (0.0267P)2 + 1.2884P]
where P = (Fo2 + 2Fc2)/3
5531 reflections(Δ/σ)max = 0.001
316 parametersΔρmax = 0.39 e Å3
0 restraintsΔρmin = 0.54 e Å3
Crystal data top
[Cd(C14H8N2O4)(C12H10N2)]V = 2208.8 (9) Å3
Mr = 562.84Z = 4
Monoclinic, P21/nMo Kα radiation
a = 11.417 (2) ŵ = 1.03 mm1
b = 15.127 (3) ÅT = 296 K
c = 13.953 (3) Å0.20 × 0.15 × 0.15 mm
β = 113.56 (3)°
Data collection top
Bruker APEXII CCD area-detector
diffractometer
5546 independent reflections
Absorption correction: multi-scan
(SADABS; Bruker, 2003)
4476 reflections with I > 2σ(I)
Tmin = 0.830, Tmax = 0.857Rint = 0.032
29346 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0270 restraints
wR(F2) = 0.065H-atom parameters constrained
S = 1.03Δρmax = 0.39 e Å3
5531 reflectionsΔρmin = 0.54 e Å3
316 parameters
Special details top

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Cd10.85744 (2)0.57934 (2)0.46226 (2)0.03224 (6)
C10.6081 (2)0.63127 (17)0.37153 (16)0.0338 (5)
C20.47303 (19)0.65276 (15)0.29705 (17)0.0332 (5)
C30.4481 (2)0.66125 (17)0.19126 (18)0.0409 (5)
H30.51390.65290.16880.049*
C40.3272 (2)0.68185 (18)0.11938 (19)0.0452 (6)
H40.31170.68740.04890.054*
C50.2291 (2)0.69416 (18)0.1525 (2)0.0466 (6)
H50.14760.70840.10420.056*
C60.2518 (2)0.68542 (17)0.2569 (2)0.0434 (6)
H60.18530.69340.27850.052*
C70.37338 (19)0.66482 (15)0.32993 (17)0.0324 (5)
C80.3502 (2)0.66117 (15)0.57681 (17)0.0333 (5)
C90.4762 (2)0.66090 (18)0.6494 (2)0.0448 (6)
H90.54210.65360.62700.054*
C100.5041 (2)0.67139 (19)0.7546 (2)0.0501 (6)
H100.58830.66800.80310.060*
C110.4072 (3)0.68693 (19)0.78789 (19)0.0514 (7)
H110.42630.69760.85820.062*
C120.2816 (2)0.68655 (19)0.71616 (18)0.0460 (6)
H120.21650.69770.73870.055*
C130.2509 (2)0.66967 (15)0.61075 (17)0.0337 (5)
C140.11219 (19)0.65396 (16)0.54090 (15)0.0321 (5)
C150.9595 (2)0.61844 (18)0.70803 (17)0.0401 (5)
H151.02550.64390.69460.048*
C160.9660 (2)0.62197 (17)0.80875 (16)0.0385 (5)
H161.03450.64970.86130.046*
C170.8691 (2)0.58364 (15)0.83072 (16)0.0330 (5)
C180.7690 (2)0.54389 (17)0.74839 (17)0.0376 (5)
H180.70230.51730.75990.045*
C190.7694 (2)0.54426 (16)0.64984 (16)0.0365 (5)
H190.70130.51820.59540.044*
C200.8766 (2)0.58749 (17)0.93792 (17)0.0401 (5)
H200.94600.61800.98590.048*
C210.7968 (2)0.55290 (17)0.97436 (17)0.0403 (5)
H210.72600.52290.92750.048*
C220.8115 (2)0.55828 (16)1.08339 (16)0.0351 (5)
C230.9183 (2)0.59518 (17)1.16178 (17)0.0410 (6)
H230.98340.61891.14560.049*
C240.9281 (2)0.59679 (17)1.26284 (17)0.0393 (5)
H241.00120.62111.31400.047*
C250.7350 (2)0.52888 (18)1.21695 (17)0.0413 (6)
H250.67140.50601.23550.050*
C260.7187 (2)0.52370 (19)1.11355 (17)0.0451 (6)
H260.64600.49721.06440.054*
N10.40723 (17)0.66223 (13)0.44004 (15)0.0359 (4)
N20.31425 (17)0.65714 (13)0.46625 (14)0.0355 (4)
N30.86399 (17)0.58059 (13)0.62892 (13)0.0334 (4)
N40.83739 (17)0.56498 (13)1.29135 (13)0.0335 (4)
O10.63330 (15)0.55260 (12)0.39939 (13)0.0421 (4)
O20.68988 (15)0.69148 (12)0.39413 (13)0.0461 (4)
O30.08109 (15)0.57455 (11)0.51322 (12)0.0399 (4)
O40.03255 (16)0.71318 (13)0.52188 (14)0.0538 (5)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cd10.02453 (8)0.05550 (12)0.01840 (7)0.00586 (7)0.01038 (6)0.00213 (7)
C10.0274 (10)0.0530 (15)0.0245 (9)0.0047 (10)0.0142 (8)0.0003 (10)
C20.0254 (10)0.0402 (13)0.0334 (11)0.0033 (9)0.0113 (9)0.0034 (10)
C30.0346 (11)0.0562 (16)0.0336 (11)0.0055 (11)0.0152 (10)0.0056 (11)
C40.0431 (13)0.0550 (16)0.0319 (11)0.0013 (12)0.0090 (10)0.0062 (11)
C50.0296 (11)0.0567 (17)0.0444 (13)0.0040 (11)0.0050 (10)0.0071 (12)
C60.0262 (10)0.0544 (16)0.0490 (14)0.0046 (10)0.0145 (10)0.0067 (12)
C70.0267 (10)0.0360 (12)0.0362 (11)0.0003 (9)0.0144 (9)0.0014 (9)
C80.0279 (10)0.0385 (13)0.0341 (11)0.0045 (9)0.0129 (9)0.0051 (10)
C90.0290 (11)0.0543 (16)0.0477 (14)0.0033 (11)0.0117 (10)0.0007 (12)
C100.0353 (13)0.0589 (17)0.0430 (14)0.0103 (12)0.0019 (11)0.0002 (13)
C110.0512 (15)0.0651 (19)0.0315 (12)0.0181 (13)0.0099 (11)0.0083 (12)
C120.0418 (13)0.0668 (18)0.0320 (11)0.0125 (12)0.0174 (10)0.0106 (12)
C130.0303 (10)0.0414 (13)0.0304 (10)0.0056 (9)0.0131 (9)0.0035 (10)
C140.0267 (10)0.0533 (15)0.0196 (9)0.0037 (10)0.0128 (8)0.0019 (9)
C150.0363 (12)0.0596 (16)0.0279 (10)0.0056 (11)0.0166 (9)0.0006 (11)
C160.0378 (12)0.0541 (15)0.0234 (10)0.0065 (11)0.0121 (9)0.0029 (10)
C170.0406 (11)0.0390 (12)0.0223 (9)0.0020 (10)0.0156 (9)0.0016 (9)
C180.0431 (13)0.0462 (14)0.0293 (10)0.0050 (10)0.0206 (10)0.0008 (10)
C190.0409 (12)0.0459 (13)0.0239 (10)0.0034 (10)0.0142 (9)0.0032 (10)
C200.0464 (13)0.0535 (15)0.0218 (9)0.0059 (11)0.0151 (9)0.0035 (10)
C210.0455 (13)0.0551 (15)0.0226 (10)0.0044 (11)0.0161 (9)0.0028 (10)
C220.0405 (12)0.0467 (14)0.0210 (9)0.0007 (10)0.0154 (9)0.0002 (9)
C230.0424 (13)0.0591 (16)0.0260 (10)0.0111 (11)0.0184 (10)0.0024 (10)
C240.0393 (12)0.0559 (16)0.0244 (10)0.0074 (11)0.0147 (9)0.0020 (10)
C250.0391 (12)0.0614 (17)0.0291 (11)0.0042 (11)0.0195 (10)0.0017 (11)
C260.0394 (12)0.0711 (18)0.0254 (10)0.0107 (12)0.0135 (10)0.0068 (11)
N10.0291 (9)0.0448 (11)0.0377 (10)0.0021 (8)0.0176 (8)0.0015 (9)
N20.0285 (9)0.0452 (12)0.0367 (10)0.0020 (8)0.0170 (8)0.0037 (9)
N30.0361 (9)0.0443 (11)0.0239 (8)0.0015 (8)0.0163 (7)0.0002 (8)
N40.0339 (9)0.0475 (12)0.0216 (8)0.0031 (8)0.0137 (7)0.0007 (8)
O10.0346 (8)0.0515 (11)0.0398 (9)0.0082 (7)0.0144 (7)0.0103 (8)
O20.0302 (8)0.0556 (11)0.0469 (10)0.0031 (8)0.0094 (7)0.0017 (8)
O30.0299 (8)0.0465 (10)0.0365 (8)0.0064 (7)0.0060 (7)0.0014 (8)
O40.0424 (10)0.0663 (13)0.0472 (10)0.0167 (9)0.0120 (8)0.0011 (9)
Geometric parameters (Å, º) top
Cd1—N32.2966 (17)C13—C141.510 (3)
Cd1—N4i2.3130 (17)C14—O41.227 (3)
Cd1—O3ii2.3621 (17)C14—O31.268 (3)
Cd1—O12.3848 (18)C15—N31.331 (3)
Cd1—O3iii2.4158 (18)C15—C161.378 (3)
Cd1—O22.4469 (18)C15—H150.9300
Cd1—C12.728 (2)C16—C171.388 (3)
C1—O11.249 (3)C16—H160.9300
C1—O21.251 (3)C17—C181.392 (3)
C1—C21.511 (3)C17—C201.465 (3)
C2—C31.393 (3)C18—C191.377 (3)
C2—C71.398 (3)C18—H180.9300
C3—C41.379 (3)C19—N31.343 (3)
C3—H30.9300C19—H190.9300
C4—C51.384 (3)C20—C211.316 (3)
C4—H40.9300C20—H200.9300
C5—C61.381 (3)C21—C221.464 (3)
C5—H50.9300C21—H210.9300
C6—C71.390 (3)C22—C231.389 (3)
C6—H60.9300C22—C261.390 (3)
C7—N11.427 (3)C23—C241.369 (3)
C8—C91.390 (3)C23—H230.9300
C8—C131.398 (3)C24—N41.339 (3)
C8—N21.430 (3)C24—H240.9300
C9—C101.381 (4)C25—N41.331 (3)
C9—H90.9300C25—C261.381 (3)
C10—C111.381 (4)C25—H250.9300
C10—H100.9300C26—H260.9300
C11—C121.382 (3)N1—N21.256 (2)
C11—H110.9300N4—Cd1iv2.3130 (17)
C12—C131.393 (3)O3—Cd1v2.3621 (17)
C12—H120.9300O3—Cd1iii2.4158 (18)
N3—Cd1—N4i173.96 (7)C11—C12—H12119.5
N3—Cd1—O3ii95.83 (7)C13—C12—H12119.5
N4i—Cd1—O3ii87.54 (7)C12—C13—C8118.6 (2)
N3—Cd1—O188.27 (7)C12—C13—C14117.82 (19)
N4i—Cd1—O187.44 (7)C8—C13—C14123.36 (19)
O3ii—Cd1—O1167.82 (6)O4—C14—O3122.2 (2)
N3—Cd1—O3iii88.54 (6)O4—C14—C13121.3 (2)
N4i—Cd1—O3iii87.65 (6)O3—C14—C13116.1 (2)
O3ii—Cd1—O3iii73.14 (6)N3—C15—C16123.7 (2)
O1—Cd1—O3iii95.56 (6)N3—C15—H15118.1
N3—Cd1—O295.26 (7)C16—C15—H15118.1
N4i—Cd1—O285.68 (7)C15—C16—C17119.1 (2)
O3ii—Cd1—O2136.17 (6)C15—C16—H16120.5
O1—Cd1—O254.36 (6)C17—C16—H16120.5
O3iii—Cd1—O2149.40 (6)C16—C17—C18117.53 (19)
N3—Cd1—C194.19 (7)C16—C17—C20118.9 (2)
N4i—Cd1—C183.90 (7)C18—C17—C20123.6 (2)
O3ii—Cd1—C1161.89 (7)C19—C18—C17119.5 (2)
O1—Cd1—C127.24 (6)C19—C18—H18120.2
O3iii—Cd1—C1122.23 (7)C17—C18—H18120.2
O2—Cd1—C127.29 (6)N3—C19—C18122.8 (2)
O1—C1—O2124.0 (2)N3—C19—H19118.6
O1—C1—C2117.6 (2)C18—C19—H19118.6
O2—C1—C2118.1 (2)C21—C20—C17127.7 (2)
O1—C1—Cd160.88 (11)C21—C20—H20116.1
O2—C1—Cd163.73 (12)C17—C20—H20116.1
C2—C1—Cd1165.93 (14)C20—C21—C22124.7 (2)
C3—C2—C7119.2 (2)C20—C21—H21117.6
C3—C2—C1117.94 (18)C22—C21—H21117.6
C7—C2—C1122.89 (19)C23—C22—C26116.65 (19)
C4—C3—C2120.8 (2)C23—C22—C21122.7 (2)
C4—C3—H3119.6C26—C22—C21120.6 (2)
C2—C3—H3119.6C24—C23—C22120.2 (2)
C3—C4—C5119.7 (2)C24—C23—H23119.9
C3—C4—H4120.1C22—C23—H23119.9
C5—C4—H4120.1N4—C24—C23123.0 (2)
C6—C5—C4120.3 (2)N4—C24—H24118.5
C6—C5—H5119.9C23—C24—H24118.5
C4—C5—H5119.9N4—C25—C26123.2 (2)
C5—C6—C7120.4 (2)N4—C25—H25118.4
C5—C6—H6119.8C26—C25—H25118.4
C7—C6—H6119.8C25—C26—C22119.6 (2)
C6—C7—C2119.6 (2)C25—C26—H26120.2
C6—C7—N1123.82 (19)C22—C26—H26120.2
C2—C7—N1116.35 (19)N2—N1—C7114.74 (19)
C9—C8—C13119.8 (2)N1—N2—C8113.60 (18)
C9—C8—N2123.58 (19)C15—N3—C19117.29 (18)
C13—C8—N2116.59 (19)C15—N3—Cd1121.84 (14)
C10—C9—C8120.4 (2)C19—N3—Cd1120.85 (14)
C10—C9—H9119.8C25—N4—C24117.26 (18)
C8—C9—H9119.8C25—N4—Cd1iv122.47 (14)
C9—C10—C11120.1 (2)C24—N4—Cd1iv120.21 (15)
C9—C10—H10120.0C1—O1—Cd191.88 (13)
C11—C10—H10120.0C1—O2—Cd188.97 (14)
C10—C11—C12119.7 (2)C14—O3—Cd1v101.53 (13)
C10—C11—H11120.2C14—O3—Cd1iii147.07 (14)
C12—C11—H11120.2Cd1v—O3—Cd1iii106.86 (6)
C11—C12—C13121.0 (2)
O1—C1—C2—C399.1 (3)C16—C17—C18—C190.2 (4)
O2—C1—C2—C374.8 (3)C20—C17—C18—C19179.3 (2)
Cd1—C1—C2—C318.9 (8)C17—C18—C19—N31.0 (4)
O1—C1—C2—C781.2 (3)C16—C17—C20—C21177.7 (3)
O2—C1—C2—C7104.9 (3)C18—C17—C20—C212.7 (4)
Cd1—C1—C2—C7161.5 (6)C17—C20—C21—C22179.0 (2)
C7—C2—C3—C40.4 (4)C20—C21—C22—C235.2 (4)
C1—C2—C3—C4179.2 (2)C20—C21—C22—C26176.6 (3)
C2—C3—C4—C50.1 (4)C26—C22—C23—C240.4 (4)
C3—C4—C5—C60.4 (4)C21—C22—C23—C24178.7 (2)
C4—C5—C6—C70.5 (4)C22—C23—C24—N40.9 (4)
C5—C6—C7—C20.1 (4)N4—C25—C26—C220.8 (4)
C5—C6—C7—N1174.3 (2)C23—C22—C26—C251.2 (4)
C3—C2—C7—C60.3 (4)C21—C22—C26—C25179.5 (2)
C1—C2—C7—C6179.3 (2)C6—C7—N1—N217.7 (3)
C3—C2—C7—N1175.2 (2)C2—C7—N1—N2167.7 (2)
C1—C2—C7—N14.5 (3)C7—N1—N2—C8175.67 (19)
C13—C8—C9—C101.8 (4)C9—C8—N2—N16.7 (3)
N2—C8—C9—C10175.3 (2)C13—C8—N2—N1170.4 (2)
C8—C9—C10—C113.4 (4)C16—C15—N3—C190.1 (4)
C9—C10—C11—C123.9 (4)C16—C15—N3—Cd1178.9 (2)
C10—C11—C12—C130.8 (4)C18—C19—N3—C150.9 (4)
C11—C12—C13—C85.9 (4)C18—C19—N3—Cd1179.65 (18)
C11—C12—C13—C14169.1 (3)C26—C25—N4—C240.5 (4)
C9—C8—C13—C126.3 (4)C26—C25—N4—Cd1iv176.7 (2)
N2—C8—C13—C12170.9 (2)C23—C24—N4—C251.4 (4)
C9—C8—C13—C14168.3 (2)C23—C24—N4—Cd1iv175.93 (19)
N2—C8—C13—C1414.4 (3)O2—C1—O1—Cd19.4 (2)
C12—C13—C14—O466.9 (3)C2—C1—O1—Cd1164.09 (15)
C8—C13—C14—O4118.4 (3)O1—C1—O2—Cd19.2 (2)
C12—C13—C14—O3105.5 (3)C2—C1—O2—Cd1164.30 (16)
C8—C13—C14—O369.3 (3)O4—C14—O3—Cd1v11.7 (2)
N3—C15—C16—C170.6 (4)C13—C14—O3—Cd1v160.59 (14)
C15—C16—C17—C180.5 (4)O4—C14—O3—Cd1iii161.02 (19)
C15—C16—C17—C20179.9 (2)C13—C14—O3—Cd1iii11.3 (3)
Symmetry codes: (i) x, y, z1; (ii) x+1, y, z; (iii) x+1, y+1, z+1; (iv) x, y, z+1; (v) x1, y, z.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C11—H11···O4vi0.932.513.355 (3)151
Symmetry code: (vi) x+1/2, y+3/2, z+1/2.

Experimental details

Crystal data
Chemical formula[Cd(C14H8N2O4)(C12H10N2)]
Mr562.84
Crystal system, space groupMonoclinic, P21/n
Temperature (K)296
a, b, c (Å)11.417 (2), 15.127 (3), 13.953 (3)
β (°) 113.56 (3)
V3)2208.8 (9)
Z4
Radiation typeMo Kα
µ (mm1)1.03
Crystal size (mm)0.20 × 0.15 × 0.15
Data collection
DiffractometerBruker APEXII CCD area-detector
diffractometer
Absorption correctionMulti-scan
(SADABS; Bruker, 2003)
Tmin, Tmax0.830, 0.857
No. of measured, independent and
observed [I > 2σ(I)] reflections
29346, 5546, 4476
Rint0.032
(sin θ/λ)max1)0.669
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.027, 0.065, 1.03
No. of reflections5531
No. of parameters316
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.39, 0.54

Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2003), SHELXL2013 (Sheldrick, 2008), XP (Sheldrick, 2008) and DIAMOND (Brandenburg, 1999), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).

Selected geometric parameters (Å, º) top
Cd1—N32.2966 (17)Cd1—O12.3848 (18)
Cd1—N4i2.3130 (17)Cd1—O3iii2.4158 (18)
Cd1—O3ii2.3621 (17)Cd1—O22.4469 (18)
N3—Cd1—N4i173.96 (7)O3ii—Cd1—O3iii73.14 (6)
N3—Cd1—O3ii95.83 (7)O1—Cd1—O3iii95.56 (6)
N4i—Cd1—O3ii87.54 (7)N3—Cd1—O295.26 (7)
N3—Cd1—O188.27 (7)N4i—Cd1—O285.68 (7)
N4i—Cd1—O187.44 (7)O3ii—Cd1—O2136.17 (6)
O3ii—Cd1—O1167.82 (6)O1—Cd1—O254.36 (6)
N3—Cd1—O3iii88.54 (6)O3iii—Cd1—O2149.40 (6)
N4i—Cd1—O3iii87.65 (6)
Symmetry codes: (i) x, y, z1; (ii) x+1, y, z; (iii) x+1, y+1, z+1.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C11—H11···O4iv0.932.513.355 (3)151.4
Symmetry code: (iv) x+1/2, y+3/2, z+1/2.
 

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