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In the title calcium carboxyl­ate, {[Ca(C9H8NO4)2(H2O)2]·2.5H2O}n, prepared by the inter­action of sodium 2-(pyridinium-1-yl)butane­dioate with CaCl2·6H2O in water, adjacent Ca2+ ions are joined by a pair of racemic 2-(pyridinium-1-yl)butane­dioate anions, forming coordination polymer strands which are further extended into a three-dimensional structure by hydrogen bonds between pendant O atoms of the carboxyl­ate groups and water mol­ecules.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S160053680504122X/ww6432sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S160053680504122X/ww6432Isup2.hkl
Contains datablock I

CCDC reference: 296698

Key indicators

  • Single-crystal X-ray study
  • T = 294 K
  • Mean [sigma](C-C) = 0.005 Å
  • R factor = 0.056
  • wR factor = 0.144
  • Data-to-parameter ratio = 15.7

checkCIF/PLATON results

No syntax errors found



Alert level C PLAT041_ALERT_1_C Calc. and Rep. SumFormula Strings Differ .... ? PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ .... ? PLAT045_ALERT_1_C Calculated and Reported Z Differ by ............ 0.50 Ratio PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical . ? PLAT222_ALERT_3_C Large Non-Solvent H Ueq(max)/Ueq(min) ... 3.11 Ratio PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for Ca1 PLAT417_ALERT_2_C Short Inter D-H..H-D H40B .. H50B .. 2.10 Ang. PLAT764_ALERT_4_C Overcomplete CIF Bond List Detected (Rep/Expd) . 1.12 Ratio
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 8 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 4 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 2 ALERT type 2 Indicator that the structure model may be wrong or deficient 1 ALERT type 3 Indicator that the structure quality may be low 1 ALERT type 4 Improvement, methodology, query or suggestion

Comment top

As depicted in Fig. 1, the Ca atom in the title compound, (I), is in a distorted octahedral environment with four O atoms from the carboxylate groups of four different 2-(pyridinium-1-yl)butanedioate (L) ligands lying on the equatorial plane, and the two aqua ligands occupying the axial positions. Although the Ca—O bond lengths [2.320–2.420 (3) Å] are normal, the angles O1W—Ca1—O2W of 157.27 (11)° and O5—Ca1—O7i of 162.23 (10)° (symmetry code as in Table 1) deviate drastically from linearity. In addition, it should be noted that the carboxylate groups of L act in different coordination modes: one is in a mono-syn mode and the other in a mono-anti-skew mode with the Ca atom 0.6903 Å above the plane of the carboxylate group. With adjacent Ca atoms bridged by a pair of racemic L molecules, compound (I) displays a one-dimensional strand structure, as shown in Fig. 2.

The strands are extended into a layer by hydrogen bonds between pendent O atoms of carboxylate groups and water solvent molecules (Fig. 3). In constructing the layer, atom O3W, which is located at an inversion center, acts as hydrogen-bond donor to two pendent O atoms of two carboxylate groups from two strands [O3W···O2v = 2.936 (3) Å; symmetry code (v) as in Table 2 and −x, 1 − y, z + 1/2 Please check: Table 2 (and PLATON only give on hydrogen bond with O3W as donor] and hydrogen-bond acceptor to an aqua ligand of the third strand [O3W···O2W = 2.951 (3) Å]. Different layers are connected into a three-dimensional structure through various intermolecualar hydrogen-bond interactions between pendent O atoms [O5W···O6 = 2.762 (3) Å and O4W···O3 = 2.672 (3) Å] and aqua ligands [O4W···O1Wiii = 2.730 (3) Å].

Experimental top

N-Succinopyridine was prepared according to the procedures of Kostyanovsky et al. (2003) and Kotov et al. (2001). The sodium salt NaL was obtained by neutralization of HL with NaOH in aqueous solution and recrystallization in water. Compound (I) was prepared by reaction of NaL (0.217 mg, 1 mmol) and CaCl2·6H2O in distilled water (5 ml). Crystals of (I) suitable for X-ray structure analysis were obtained by standing the reaction mixture for several days at ambient temperature.

Refinement top

All H atoms were located on the difference Fourier map and allowed to ride on their respective parent atoms. For the CH and CH2 groups, Uiso(H) values were set equal to 1.2Ueq(carrier atom) and for the water molecules, they were set equal to 1.5Ueq(carrier atom).

Computing details top

Data collection: XSCANS (Siemens, 1994); cell refinement: XSCANS; data reduction: XSCANS; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 1997); software used to prepare material for publication: SHELXTL.

Figures top
[Figure 1] Fig. 1. The coordination environment of CaII in (I). Displacement ellipsoids are drawn at the 35% probability level. [Symmetry codes: (A) x, 2 − y, 1/2 + z; (B) x, 2 − y, −1/2 + z.]
[Figure 2] Fig. 2. The one-dimensional polymer strand of compound (I). H atoms have been omitted for clarity.
[Figure 3] Fig. 3. The hydrogen-bonded layer structure of (I). Pyridyl rings and H atoms have been omitted for clarity.
catena-Poly[[[diaquacalcium(II)]bis[µ-2-(pyridinium-1-yl)butanedioato- κO1:O4]] 2.5-hydrate] top
Crystal data top
[Ca(C9H8NO4)2(H2O)2]·2.5H2OF(000) = 2136
Mr = 509.48Dx = 1.559 Mg m3
Monoclinic, C2/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2ycCell parameters from 40 reflections
a = 31.766 (14) Åθ = 9.3–25.8°
b = 9.8281 (13) ŵ = 0.36 mm1
c = 14.2746 (16) ÅT = 294 K
β = 103.018 (16)°Block, colorless
V = 4342 (2) Å30.28 × 0.22 × 0.20 mm
Z = 8
Data collection top
Siemens P4
diffractometer
3569 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.036
Graphite monochromatorθmax = 27.0°, θmin = 2.2°
ω scansh = 140
Absorption correction: ψ scan
(North et al., 1968)
k = 112
Tmin = 0.909, Tmax = 0.930l = 1817
5549 measured reflections3 standard reflections every 120 reflections
4744 independent reflections intensity decay: 8%
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)] = 0.056Hydrogen site location: difference Fourier map
wR(F2) = 0.144H-atom parameters constrained
S = 1.13 w = 1/[σ2(Fo2) + (0.0429P)2 + 15.5672P]
where P = (Fo2 + 2Fc2)/3
4744 reflections(Δ/σ)max < 0.001
303 parametersΔρmax = 0.44 e Å3
0 restraintsΔρmin = 0.32 e Å3
Crystal data top
[Ca(C9H8NO4)2(H2O)2]·2.5H2OV = 4342 (2) Å3
Mr = 509.48Z = 8
Monoclinic, C2/cMo Kα radiation
a = 31.766 (14) ŵ = 0.36 mm1
b = 9.8281 (13) ÅT = 294 K
c = 14.2746 (16) Å0.28 × 0.22 × 0.20 mm
β = 103.018 (16)°
Data collection top
Siemens P4
diffractometer
3569 reflections with I > 2σ(I)
Absorption correction: ψ scan
(North et al., 1968)
Rint = 0.036
Tmin = 0.909, Tmax = 0.9303 standard reflections every 120 reflections
5549 measured reflections intensity decay: 8%
4744 independent reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0560 restraints
wR(F2) = 0.144H-atom parameters constrained
S = 1.13 w = 1/[σ2(Fo2) + (0.0429P)2 + 15.5672P]
where P = (Fo2 + 2Fc2)/3
4744 reflectionsΔρmax = 0.44 e Å3
303 parametersΔρmin = 0.32 e Å3
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.

Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Ca10.10310 (2)0.85722 (6)0.11548 (4)0.02100 (16)
O1W0.17903 (8)0.8520 (3)0.1582 (2)0.0578 (9)
H10A0.20080.80300.14650.087*
H10B0.18860.93480.19530.087*
O2W0.03000 (8)0.8373 (3)0.13758 (18)0.0407 (6)
H20A0.02250.77730.16880.061*
H20B0.00400.86840.11470.061*
O3W0.00000.6206 (4)0.25000.0400 (8)
H30A0.01910.55990.21790.060*
O4W0.25432 (8)0.8002 (3)0.1230 (2)0.0455 (7)
H40A0.22980.83660.15240.068*
H40B0.26260.84510.07330.068*
O5W0.23427 (9)0.4527 (3)0.4536 (2)0.0528 (7)
H50A0.21120.48960.40960.079*
H50B0.23430.36850.42590.079*
O10.09401 (8)0.6924 (2)0.00371 (15)0.0308 (5)
O20.06406 (8)0.5464 (2)0.11898 (15)0.0298 (5)
C10.08151 (10)0.6563 (3)0.0905 (2)0.0212 (6)
C20.08985 (10)0.7640 (3)0.16370 (19)0.0207 (6)
H2A0.07710.84970.14860.031*
O30.18469 (8)0.9338 (3)0.2195 (2)0.0496 (8)
O40.11479 (7)0.9771 (2)0.26199 (16)0.0306 (5)
C30.14634 (10)0.9096 (3)0.2186 (2)0.0256 (7)
C40.13776 (10)0.7901 (3)0.1560 (2)0.0244 (6)
H4A0.15080.70850.17510.029*
H4B0.15150.80870.08940.029*
N10.06770 (8)0.7259 (2)0.26315 (16)0.0198 (5)
C50.03723 (10)0.8091 (3)0.3143 (2)0.0243 (6)
H5A0.03110.89090.28750.029*
C60.01534 (10)0.7751 (3)0.4043 (2)0.0285 (7)
H6A0.00600.83220.43850.034*
C70.02524 (11)0.6544 (4)0.4447 (2)0.0302 (7)
H7A0.01050.62950.50620.036*
C80.05714 (11)0.5715 (3)0.3930 (2)0.0282 (7)
H8A0.06440.49090.41970.034*
C90.07825 (10)0.6093 (3)0.3013 (2)0.0233 (6)
H9A0.09980.55390.26580.028*
O50.11345 (8)0.6873 (2)0.23276 (15)0.0336 (6)
O60.16197 (9)0.5620 (3)0.33267 (17)0.0400 (6)
C100.13792 (10)0.6617 (3)0.3132 (2)0.0250 (6)
C110.13551 (10)0.7675 (3)0.3923 (2)0.0232 (6)
H11A0.14860.85180.37570.035*
O70.11610 (10)0.9750 (3)0.5084 (2)0.0539 (8)
O80.04608 (10)0.9668 (3)0.4507 (3)0.0590 (9)
C120.08327 (12)0.9224 (3)0.4563 (3)0.0343 (8)
C130.08896 (10)0.8001 (3)0.3955 (2)0.0272 (7)
H13A0.07260.81570.33030.033*
H13B0.07660.72120.42000.033*
C140.19645 (11)0.7932 (4)0.5320 (3)0.0344 (8)
H14A0.20410.87260.50450.041*
N20.16145 (8)0.7216 (3)0.48709 (17)0.0233 (5)
C150.22087 (13)0.7485 (5)0.6188 (3)0.0461 (10)
H15A0.24540.79650.64910.055*
C160.20904 (13)0.6328 (5)0.6606 (3)0.0471 (10)
H16A0.22520.60290.71970.056*
C170.17325 (12)0.5619 (4)0.6147 (2)0.0380 (8)
H17A0.16480.48370.64230.046*
C180.14988 (11)0.6074 (3)0.5274 (2)0.0274 (7)
H18A0.12570.55890.49570.033*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Ca10.0277 (3)0.0192 (3)0.0160 (3)0.0017 (3)0.0049 (2)0.0004 (2)
O1W0.0300 (14)0.0592 (19)0.081 (2)0.0090 (13)0.0056 (14)0.0331 (17)
O2W0.0325 (13)0.0503 (16)0.0402 (14)0.0088 (12)0.0099 (11)0.0073 (12)
O3W0.039 (2)0.037 (2)0.042 (2)0.0000.0052 (16)0.000
O4W0.0372 (14)0.0470 (16)0.0498 (16)0.0116 (12)0.0046 (12)0.0078 (13)
O5W0.0536 (17)0.0525 (18)0.0481 (17)0.0084 (14)0.0024 (13)0.0003 (14)
O10.0523 (15)0.0260 (12)0.0145 (10)0.0044 (11)0.0083 (10)0.0003 (9)
O20.0427 (14)0.0231 (12)0.0239 (11)0.0063 (10)0.0079 (10)0.0014 (9)
C10.0291 (15)0.0192 (14)0.0163 (13)0.0024 (12)0.0075 (11)0.0008 (11)
C20.0311 (16)0.0189 (14)0.0124 (13)0.0010 (12)0.0054 (11)0.0004 (11)
O30.0305 (14)0.0522 (17)0.0666 (19)0.0013 (12)0.0123 (13)0.0324 (15)
O40.0289 (12)0.0279 (12)0.0342 (13)0.0022 (10)0.0055 (10)0.0104 (10)
C30.0309 (17)0.0232 (15)0.0240 (15)0.0009 (13)0.0088 (13)0.0008 (13)
C40.0285 (16)0.0224 (15)0.0212 (14)0.0000 (13)0.0033 (12)0.0037 (12)
N10.0273 (13)0.0194 (12)0.0143 (11)0.0014 (10)0.0078 (9)0.0017 (10)
C50.0237 (15)0.0260 (16)0.0248 (15)0.0038 (12)0.0086 (12)0.0038 (12)
C60.0247 (16)0.0340 (18)0.0259 (16)0.0003 (14)0.0037 (12)0.0070 (14)
C70.0348 (17)0.0352 (18)0.0192 (14)0.0095 (15)0.0032 (13)0.0022 (14)
C80.0399 (18)0.0261 (16)0.0209 (15)0.0011 (14)0.0115 (13)0.0039 (13)
C90.0314 (16)0.0222 (15)0.0171 (14)0.0027 (12)0.0076 (12)0.0015 (12)
O50.0560 (16)0.0259 (12)0.0175 (11)0.0011 (11)0.0057 (10)0.0002 (9)
O60.0531 (16)0.0355 (14)0.0291 (13)0.0188 (12)0.0043 (11)0.0060 (11)
C100.0343 (17)0.0235 (16)0.0189 (14)0.0009 (13)0.0095 (12)0.0003 (12)
C110.0299 (16)0.0217 (15)0.0175 (14)0.0012 (13)0.0043 (12)0.0012 (12)
O70.072 (2)0.0411 (16)0.0444 (16)0.0118 (15)0.0042 (14)0.0240 (13)
O80.0531 (18)0.0331 (15)0.105 (3)0.0117 (13)0.0482 (18)0.0001 (16)
C120.050 (2)0.0243 (17)0.0349 (19)0.0073 (16)0.0228 (17)0.0079 (15)
C130.0308 (17)0.0258 (16)0.0255 (15)0.0035 (13)0.0073 (13)0.0006 (13)
C140.0351 (19)0.0334 (19)0.0343 (18)0.0072 (15)0.0068 (15)0.0055 (15)
N20.0281 (13)0.0241 (13)0.0181 (12)0.0004 (11)0.0064 (10)0.0041 (10)
C150.039 (2)0.060 (3)0.034 (2)0.0030 (19)0.0044 (16)0.0105 (19)
C160.050 (2)0.061 (3)0.0256 (17)0.012 (2)0.0013 (16)0.0011 (19)
C170.045 (2)0.044 (2)0.0264 (17)0.0083 (17)0.0102 (15)0.0096 (16)
C180.0341 (17)0.0260 (16)0.0234 (15)0.0008 (13)0.0094 (13)0.0036 (13)
Geometric parameters (Å, º) top
Ca1—O12.320 (2)C6—C71.386 (5)
Ca1—O52.335 (2)C6—H6A0.9300
Ca1—O7i2.348 (3)C7—C81.377 (5)
Ca1—O1W2.352 (3)C7—H7A0.9300
Ca1—O4ii2.357 (2)C8—C91.381 (4)
Ca1—O2W2.421 (3)C8—H8A0.9300
Ca1—C12i3.100 (4)C9—H9A0.9300
O1W—H10A0.8890O5—C101.259 (4)
O1W—H10B0.9814O6—C101.235 (4)
O2W—H20A0.8066C10—C111.549 (4)
O2W—H20B0.8721C11—N21.487 (4)
O3W—H30A0.8990C11—C131.524 (4)
O4W—H40A0.8738C11—H11A0.9800
O4W—H40B0.8271O7—C121.248 (5)
O5W—H50A0.9252O7—Ca1ii2.348 (3)
O5W—H50B0.9178O8—C121.245 (4)
O1—C11.263 (3)C12—C131.517 (5)
O2—C11.240 (4)C12—Ca1ii3.100 (4)
C1—C21.551 (4)C13—H13A0.9700
C2—N11.483 (3)C13—H13B0.9700
C2—C41.523 (4)C14—N21.350 (4)
C2—H2A0.9800C14—C151.377 (5)
O3—C31.244 (4)C14—H14A0.9300
O4—C31.245 (4)N2—C181.350 (4)
O4—Ca1i2.357 (2)C15—C161.376 (6)
C3—C41.536 (4)C15—H15A0.9300
C4—H4A0.9700C16—C171.368 (6)
C4—H4B0.9700C16—H16A0.9300
N1—C91.343 (4)C17—C181.373 (5)
N1—C51.349 (4)C17—H17A0.9300
C5—C61.358 (4)C18—H18A0.9300
C5—H5A0.9300
O1—Ca1—O590.03 (8)C6—C5—H5A119.5
O1—Ca1—O7i91.38 (10)C5—C6—C7119.2 (3)
O5—Ca1—O7i162.23 (10)C5—C6—H6A120.4
O1—Ca1—O1W97.24 (10)C7—C6—H6A120.4
O5—Ca1—O1W80.08 (11)C8—C7—C6119.5 (3)
O7i—Ca1—O1W82.14 (12)C8—C7—H7A120.3
O1—Ca1—O4ii178.11 (9)C6—C7—H7A120.3
O5—Ca1—O4ii89.36 (8)C7—C8—C9119.3 (3)
O7i—Ca1—O4ii88.66 (10)C7—C8—H8A120.3
O1W—Ca1—O4ii80.89 (9)C9—C8—H8A120.3
O1—Ca1—O2W94.27 (9)N1—C9—C8120.1 (3)
O5—Ca1—O2W80.38 (9)N1—C9—H9A119.9
O7i—Ca1—O2W117.15 (10)C8—C9—H9A119.9
O1W—Ca1—O2W157.27 (11)C10—O5—Ca1139.1 (2)
O4ii—Ca1—O2W87.40 (9)O6—C10—O5126.0 (3)
O1—Ca1—C12i88.80 (8)O6—C10—C11119.9 (3)
O5—Ca1—C12i176.38 (10)O5—C10—C11114.1 (3)
O7i—Ca1—C12i21.29 (10)N2—C11—C13112.3 (2)
O1W—Ca1—C12i103.46 (12)N2—C11—C10110.5 (2)
O4ii—Ca1—C12i91.91 (9)C13—C11—C10111.7 (3)
O2W—Ca1—C12i96.29 (9)N2—C11—H11A107.3
Ca1—O1W—H10A139.4C13—C11—H11A107.3
Ca1—O1W—H10B107.3C10—C11—H11A107.3
H10A—O1W—H10B113.0C12—O7—Ca1ii115.6 (2)
Ca1—O2W—H20A122.8O8—C12—O7123.1 (4)
Ca1—O2W—H20B141.1O8—C12—C13118.3 (4)
H20A—O2W—H20B95.2O7—C12—C13118.5 (3)
H40A—O4W—H40B105.7O8—C12—Ca1ii80.5 (2)
H50A—O5W—H50B97.9C13—C12—Ca1ii160.4 (2)
C1—O1—Ca1151.0 (2)C12—C13—C11115.2 (3)
O2—C1—O1125.8 (3)C12—C13—H13A108.5
O2—C1—C2120.3 (2)C11—C13—H13A108.5
O1—C1—C2113.9 (3)C12—C13—H13B108.5
N1—C2—C4111.3 (2)C11—C13—H13B108.5
N1—C2—C1110.9 (2)H13A—C13—H13B107.5
C4—C2—C1112.7 (2)N2—C14—C15119.9 (4)
N1—C2—H2A107.2N2—C14—H14A120.1
C4—C2—H2A107.2C15—C14—H14A120.1
C1—C2—H2A107.2C14—N2—C18120.3 (3)
C3—O4—Ca1i135.4 (2)C14—N2—C11120.2 (3)
O3—C3—O4125.0 (3)C18—N2—C11119.5 (3)
O3—C3—C4117.1 (3)C16—C15—C14120.1 (4)
O4—C3—C4117.9 (3)C16—C15—H15A120.0
C2—C4—C3113.1 (2)C14—C15—H15A120.0
C2—C4—H4A109.0C17—C16—C15119.4 (4)
C3—C4—H4A109.0C17—C16—H16A120.3
C2—C4—H4B109.0C15—C16—H16A120.3
C3—C4—H4B109.0C16—C17—C18119.3 (4)
H4A—C4—H4B107.8C16—C17—H17A120.3
C9—N1—C5120.8 (3)C18—C17—H17A120.3
C9—N1—C2119.7 (2)N2—C18—C17121.0 (3)
C5—N1—C2119.5 (2)N2—C18—H18A119.5
N1—C5—C6121.0 (3)C17—C18—H18A119.5
N1—C5—H5A119.5
Symmetry codes: (i) x, y+2, z1/2; (ii) x, y+2, z+1/2.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1W—H10A···O4Wiii0.891.842.730 (4)179
O1W—H10B···O3ii0.981.802.715 (4)154
O2W—H20A···O3W0.812.142.951 (4)178
O2W—H20B···O8iv0.871.922.771 (4)166
O3W—H30A···O2v0.902.052.935 (3)167
O4W—H40A···O30.871.812.672 (4)170
O4W—H40B···O5Wvi0.831.992.798 (4)165
O5W—H50A···O60.931.842.761 (4)174
O5W—H50B···O4Wvii0.921.962.845 (4)162
Symmetry codes: (ii) x, y+2, z+1/2; (iii) x+1/2, y+3/2, z; (iv) x, y, z+1/2; (v) x, y+1, z; (vi) x+1/2, y+1/2, z+1/2; (vii) x, y+1, z+1/2.

Experimental details

Crystal data
Chemical formula[Ca(C9H8NO4)2(H2O)2]·2.5H2O
Mr509.48
Crystal system, space groupMonoclinic, C2/c
Temperature (K)294
a, b, c (Å)31.766 (14), 9.8281 (13), 14.2746 (16)
β (°) 103.018 (16)
V3)4342 (2)
Z8
Radiation typeMo Kα
µ (mm1)0.36
Crystal size (mm)0.28 × 0.22 × 0.20
Data collection
DiffractometerSiemens P4
diffractometer
Absorption correctionψ scan
(North et al., 1968)
Tmin, Tmax0.909, 0.930
No. of measured, independent and
observed [I > 2σ(I)] reflections
5549, 4744, 3569
Rint0.036
(sin θ/λ)max1)0.639
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.056, 0.144, 1.13
No. of reflections4744
No. of parameters303
H-atom treatmentH-atom parameters constrained
w = 1/[σ2(Fo2) + (0.0429P)2 + 15.5672P]
where P = (Fo2 + 2Fc2)/3
Δρmax, Δρmin (e Å3)0.44, 0.32

Computer programs: XSCANS (Siemens, 1994), XSCANS, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 1997), SHELXTL.

Selected geometric parameters (Å, º) top
Ca1—O12.320 (2)O2—C11.240 (4)
Ca1—O52.335 (2)O3—C31.244 (4)
Ca1—O7i2.348 (3)O4—C31.245 (4)
Ca1—O1W2.352 (3)O5—C101.259 (4)
Ca1—O4ii2.357 (2)O6—C101.235 (4)
Ca1—O2W2.421 (3)O7—C121.248 (5)
O1—C11.263 (3)O8—C121.245 (4)
O1—Ca1—O590.03 (8)O7i—Ca1—O2W117.15 (10)
O1—Ca1—O7i91.38 (10)O1W—Ca1—O2W157.27 (11)
O5—Ca1—O7i162.23 (10)O4ii—Ca1—O2W87.40 (9)
O1—Ca1—O1W97.24 (10)C1—O1—Ca1151.0 (2)
O5—Ca1—O1W80.08 (11)O2—C1—O1125.8 (3)
O7i—Ca1—O1W82.14 (12)C3—O4—Ca1i135.4 (2)
O1—Ca1—O4ii178.11 (9)O3—C3—O4125.0 (3)
O5—Ca1—O4ii89.36 (8)O3—C3—C4117.1 (3)
O7i—Ca1—O4ii88.66 (10)C10—O5—Ca1139.1 (2)
O1W—Ca1—O4ii80.89 (9)O6—C10—O5126.0 (3)
O1—Ca1—O2W94.27 (9)O8—C12—O7123.1 (4)
O5—Ca1—O2W80.38 (9)
Symmetry codes: (i) x, y+2, z1/2; (ii) x, y+2, z+1/2.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1W—H10A···O4Wiii0.891.842.730 (4)179
O1W—H10B···O3ii0.981.802.715 (4)154
O2W—H20A···O3W0.812.142.951 (4)178
O2W—H20B···O8iv0.871.922.771 (4)166
O3W—H30A···O2v0.902.052.935 (3)167
O4W—H40A···O30.871.812.672 (4)170
O4W—H40B···O5Wvi0.831.992.798 (4)165
O5W—H50A···O60.931.842.761 (4)174
O5W—H50B···O4Wvii0.921.962.845 (4)162
Symmetry codes: (ii) x, y+2, z+1/2; (iii) x+1/2, y+3/2, z; (iv) x, y, z+1/2; (v) x, y+1, z; (vi) x+1/2, y+1/2, z+1/2; (vii) x, y+1, z+1/2.
 

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