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The crystal structure of the title compound, [Cd(C4H10N4)3](ClO4)2, has been precisely determined at ca 110 K. The cation is located on a \overline 3 axis and is characterized by an approximate octahedral geometry, with each of the ligands occupying two coordination sites around the metal.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536805004769/ci6529sup1.cif
Contains datablocks I, global

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536805004769/ci6529Isup2.hkl
Contains datablock I

CCDC reference: 269415

Key indicators

  • Single-crystal X-ray study
  • T = 110 K
  • R factor = 0.032
  • wR factor = 0.090
  • Data-to-parameter ratio = 14.5

checkCIF/PLATON results

No syntax errors found



Alert level A CHEM001_ALERT_1_A _chemical_formula_sum is missing Chemical formula as sum of elements. The following tests will not be performed. CELLZ_01,CHEMS_01,CHEMW_01 ABSMU01_ALERT_1_A The ratio of given/expected absorption coefficient lies outside the range 0.90 <> 1.10 Calculated value of mu = 0.000 Value of mu given = 1.181 DIFMN02_ALERT_2_A The minimum difference density is < -0.1*ZMAX*2.00 _refine_diff_density_min given = -0.584 Test value = 0.000 DIFMX01_ALERT_2_A The maximum difference density is > 0.1*ZMAX*2.00 _refine_diff_density_max given = 0.367 Test value = 0.000 PLAT029_ALERT_3_A _diffrn_measured_fraction_theta_full Low ....... 0.90
Author Response: The structure of complex (I) is isomorphous and isometric with the structure of an analogous zinc complex described in a preceeding paper and analyzed at identical experimental conditions. Due to technical problems and to save time, a less complete data set was used in the crystallographic refinement of this structure without affecting significantly the precision of the structure determination. Also, the higher angle diffraction in this case has limited influence on the refined parameters due to the presence of a strong diffractor (Cd-atom) which dominates the diffraction pattern.
PLAT047_ALERT_1_A SumFormula Not Given ...........................          ?

Alert level C DIFMN03_ALERT_1_C The minimum difference density is < -0.1*ZMAX*0.75 The relevant atom site should be identified. DIFMX02_ALERT_1_C The minimum difference density is > 0.1*ZMAX*0.75 The relevant atom site should be identified. REFLT03_ALERT_3_C Reflection count < 95% complete From the CIF: _diffrn_reflns_theta_max 26.96 From the CIF: _diffrn_reflns_theta_full 0.00 From the CIF: _reflns_number_total 810 TEST2: Reflns within _diffrn_reflns_theta_max Count of symmetry unique reflns 893 Completeness (_total/calc) 90.71% PLAT022_ALERT_3_C Ratio Unique / Expected Reflections too Low .... 0.91 PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ .... ? PLAT420_ALERT_2_C D-H Without Acceptor N2 - H2B ... ?
Alert level G CHEMS02_ALERT_1_G Please check that you have entered the correct _publ_requested_category classification of your compound; FI or CI or EI for inorganic; FM or CM or EM for metal-organic; FO or CO or EO for organic. From the CIF: _publ_requested_category EM From the CIF: _chemical_formula_sum : REFLT03_ALERT_1_G ALERT: Expected hkl max differ from CIF values From the CIF: _diffrn_reflns_theta_max 26.96 From the CIF: _reflns_number_total 810 From the CIF: _diffrn_reflns_limit_ max hkl 12. 10. 15. From the CIF: _diffrn_reflns_limit_ min hkl -12. -10. -15. TEST1: Expected hkl limits for theta max Calculated maximum hkl 12. 12. 19. Calculated minimum hkl -12. -12. -19.
6 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 6 ALERT level C = Check and explain 2 ALERT level G = General alerts; check 8 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 3 ALERT type 2 Indicator that the structure model may be wrong or deficient 3 ALERT type 3 Indicator that the structure quality may be low 0 ALERT type 4 Improvement, methodology, query or suggestion

Computing details top

Data collection: COLLECT (Nonius, 1999); cell refinement: DENZO (Otwinowski & Minor, 1997); data reduction: DENZO; program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEPIII (Burnett & Johnson, 1996); software used to prepare material for publication: SHELXL97.

Tris(biacetyl dihydrazone-κ2N,N')cadmium(II) bis(perchlorate) at 110 K top
Crystal data top
[Cd(C4H10N4)3](ClO4)2Dx = 1.783 Mg m3
Mr = 653.78Mo Kα radiation, λ = 0.71073 Å
Trigonal, P3c1Cell parameters from 1745 reflections
Hall symbol: -P 3 2"cθ = 2.5–27.0°
a = 9.5905 (7) ŵ = 1.18 mm1
c = 15.2874 (8) ÅT = 110 K
V = 1217.72 (14) Å3Prism, colourless
Z = 20.20 × 0.15 × 0.15 mm
F(000) = 664
Data collection top
Nonius KappaCCD
diffractometer
810 independent reflections
Radiation source: fine-focus sealed tube638 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.041
Detector resolution: 56 microns pixels mm-1θmax = 27.0°, θmin = 2.5°
φ and ω scansh = 1212
Absorption correction: multi-scan
(Blessing, 1995)
k = 1010
Tmin = 0.798, Tmax = 0.843l = 1515
8975 measured 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)] = 0.032Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.090H-atom parameters constrained
S = 1.08 w = 1/[σ2(Fo2) + (0.0529P)2 + 0.0248P]
where P = (Fo2 + 2Fc2)/3
810 reflections(Δ/σ)max = 0.013
56 parametersΔρmax = 0.37 e Å3
0 restraintsΔρmin = 0.58 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 > σ(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.

The metal cation is located on 3 bar axis, while the perchlorate anion on a 3 rotation axis.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Cd10.00000.00000.25000.0190 (2)
N20.1318 (3)0.1119 (3)0.08418 (15)0.0258 (6)
H2A0.17330.16620.06170.029 (9)*
H2B0.02330.17240.07690.035 (9)*
N30.1685 (3)0.0606 (3)0.16943 (13)0.0218 (5)
C40.3019 (3)0.0333 (3)0.20477 (17)0.0204 (6)
C50.4208 (4)0.0670 (4)0.15942 (19)0.0269 (6)
H5A0.40180.17350.17690.040*
H5B0.53040.01510.17580.040*
H5C0.40770.06480.09590.040*
Cl60.66670.33330.42187 (8)0.0240 (3)
O70.5030 (3)0.2438 (3)0.45279 (16)0.0389 (6)
O80.66670.33330.3284 (2)0.0269 (8)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cd10.0197 (2)0.0197 (2)0.0175 (4)0.00986 (12)0.0000.000
N20.0278 (14)0.0313 (14)0.0201 (15)0.0162 (12)0.0018 (9)0.0067 (9)
N30.0238 (13)0.0232 (12)0.0184 (12)0.0117 (10)0.0001 (10)0.0024 (9)
C40.0204 (14)0.0157 (13)0.0233 (14)0.0077 (12)0.0039 (11)0.0031 (10)
C50.0255 (15)0.0278 (16)0.0297 (17)0.0149 (14)0.0038 (12)0.0011 (12)
Cl60.0271 (5)0.0271 (5)0.0178 (9)0.0136 (2)0.0000.000
O70.0357 (14)0.0431 (14)0.0344 (15)0.0171 (11)0.0140 (10)0.0084 (9)
O80.0313 (12)0.0313 (12)0.018 (2)0.0157 (6)0.0000.000
Geometric parameters (Å, º) top
Cd1—N3i2.325 (2)C4—C4ii1.489 (5)
Cd1—N3ii2.325 (2)C4—C51.502 (4)
Cd1—N3iii2.325 (2)C5—H5A0.98
Cd1—N3iv2.325 (2)C5—H5B0.98
Cd1—N32.325 (2)C5—H5C0.98
Cd1—N3v2.325 (2)Cl6—O81.429 (4)
N2—N31.375 (3)Cl6—O7vi1.441 (2)
N2—H2A0.87Cl6—O7vii1.441 (2)
N2—H2B0.91Cl6—O71.441 (2)
N3—C41.289 (3)
N3i—Cd1—N3ii94.53 (7)C4—N3—N2121.4 (2)
N3i—Cd1—N3iii94.53 (7)C4—N3—Cd1118.05 (17)
N3ii—Cd1—N3iii94.53 (7)N2—N3—Cd1120.39 (17)
N3i—Cd1—N3iv106.63 (12)N3—C4—C4ii117.03 (15)
N3ii—Cd1—N3iv154.27 (12)N3—C4—C5123.1 (2)
N3iii—Cd1—N3iv69.82 (11)C4ii—C4—C5119.87 (16)
N3i—Cd1—N3154.27 (12)C4—C5—H5A109.5
N3ii—Cd1—N369.82 (11)C4—C5—H5B109.5
N3iii—Cd1—N3106.63 (12)H5A—C5—H5B109.5
N3iv—Cd1—N394.53 (7)C4—C5—H5C109.5
N3i—Cd1—N3v69.82 (11)H5A—C5—H5C109.5
N3ii—Cd1—N3v106.63 (12)H5B—C5—H5C109.5
N3iii—Cd1—N3v154.27 (12)O8—Cl6—O7vi109.14 (12)
N3iv—Cd1—N3v94.53 (7)O8—Cl6—O7vii109.14 (12)
N3—Cd1—N3v94.53 (7)O7vi—Cl6—O7vii109.80 (12)
N3—N2—H2A118.4O8—Cl6—O7109.14 (12)
N3—N2—H2B110.6O7vi—Cl6—O7109.80 (12)
H2A—N2—H2B106.8O7vii—Cl6—O7109.79 (12)
N3i—Cd1—N3—C455.04 (19)N3iii—Cd1—N3—N296.0 (2)
N3ii—Cd1—N3—C40.29 (14)N3iv—Cd1—N3—N225.73 (18)
N3iii—Cd1—N3—C489.0 (2)N3v—Cd1—N3—N269.19 (15)
N3iv—Cd1—N3—C4159.3 (2)N2—N3—C4—C4ii175.7 (3)
N3v—Cd1—N3—C4105.8 (2)Cd1—N3—C4—C4ii0.8 (4)
N3i—Cd1—N3—N2119.9 (2)N2—N3—C4—C55.0 (4)
N3ii—Cd1—N3—N2175.3 (3)Cd1—N3—C4—C5179.9 (2)
Symmetry codes: (i) y, x, z+1/2; (ii) xy, y, z+1/2; (iii) x, x+y, z+1/2; (iv) x+y, x, z; (v) y, xy, z; (vi) y+1, xy, z; (vii) x+y+1, x+1, z.
Comparison of some bond lengths (Å) in the isostructural Cd, Zn and Ni 1:3 complexes with biacetyldihydrazone. top
BondM = ZnM = CdM = Ni
M—N32.158 (2)2.325 (2)2.060–2.088
N2—N31.386 (3)1.375 (3)1.375–1.388
N3—C41.281 (3)1.289 (3)1.278–1.298
C4—C51.492 (3)1.502 (4)1.378–1.504
C4—C4*1.502 (5)1.489 (5)1.473–1.485
 

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