Dichlorido(dimethyl­glyoximato-κ2N,N′)(dimethyl­glyoxime-κ2N,N′)cobalt(III)

Ramesh, P.; SubbiahPandi, A.; Jothi, P.; Revathi, C.; Dayalan, A.

doi:10.1107/S1600536807068407

Volume 64
Part 2
Pages m300-m301
February 2008

Received 10 November 2007
Accepted 25 December 2007
Online 4 January 2008

Key indicators
Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.002 Å
R = 0.025
wR = 0.058
Data-to-parameter ratio = 29.5
Details

Dichlorido(dimethylglyoximato-²N,N')(dimethylglyoxime-²N,N')cobalt(III)

P. Ramesh,^a A. SubbiahPandi,^a ^* P. Jothi,^b C. Revathi ^b and A. Dayalan ^b

^aDepartment of Physics, Presidency College (Autonomous), Chennai 600 005, India, and ^bDepartment of Chemistry, Loyola College (Autonomous), Chennai 600 034, India
Correspondence e-mail: a_spandian@yahoo.com

In the title compound, [Co(C₄H₇N₂O₂)Cl₂(C₄H₈N₂O₂)], the Co^III ion has a distorted octahedral coordination environment. The equatorial plane consists of four N atoms, two each from the dimethylglyoxime and dimethylglyoximate ligands, while the two axial positions are occupied by two chloride ions. Strong intramolecular O-HO hydrogen bonds are observed between the dimethylglyoxime and dimethylglyoximate ligands. Molecules are linked into a chain running along the [101] direction by O-HO and C-HCl hydrogen bonds. The chains are cross-linked through intermolecular C-HCl hydrogen bonds.

Related literature

For related literature, see: Dayalan & Vijayaraghavan (2001); Lee et al. (2007); Gupta et al. (2000, 2001, 2004); Ohkubo & Fukuzumi (2005); Razavelt et al. (2005). Trommel et al. (2001).

Experimental

Crystal data

[Co(C₄H₇N₂O₂)Cl₂(C₄H₈N₂O₂)]
M_r = 361.07
Monoclinic, P n
a = 8.1901 (2) Å
b = 8.1261 (2) Å
c = 10.4463 (3) Å
= 102.007 (1)°
V = 680.03 (3) Å³
Z = 2
Mo K radiation
= 1.67 mm^-1
T = 293 (2) K
0.20 × 0.12 × 0.12 mm

Data collection

Bruker-Nonius Kappa-APEXII CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 1999) T_min = 0.786, T_max = 0.819
10990 measured reflections
5284 independent reflections
4711 reflections with I > 2(I)
R_int = 0.021

Refinement

R[F² > 2(F²)] = 0.025
wR(F²) = 0.057
S = 0.99
5284 reflections
179 parameters
2 restraints
H-atom parameters constrained
_max = 0.56 e Å^-3
_min = -0.29 e Å^-3
Absolute structure: Flack (1983), 2067 Friedel pairs
Flack parameter: 0.008 (7)

Table 1
Selected bond lengths (Å)

Cl1-Co	2.2292 (4)
Cl2-Co	2.2261 (4)
Co-N2	1.8870 (12)
Co-N3	1.9048 (13)
Co-N1	1.9051 (12)
Co-N4	1.9181 (12)

Table 2
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
O3-H3O1	0.82	1.81	2.5875 (16)	158
O4-H4O2	0.82	1.89	2.6604 (18)	156
O2-H2O1ⁱ	0.82	1.73	2.5297 (17)	163
C4-H4CCl1ⁱ	0.96	2.73	3.6473 (19)	160
C5-H5ACl1ⁱⁱ	0.96	2.67	3.6317 (18)	175
Symmetry codes: (i) $[x-{\script{1\over 2}}, -y, z-{\script{1\over 2}}]$ ; (ii) $[x+{\script{1\over 2}}, -y+1, z-{\script{1\over 2}}]$ .

Data collection: APEX2 (Bruker-Nonius, 2004); cell refinement: APEX2; data reduction: SAINT (Bruker-Nonius, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2003).

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: CI2517 ).

Acknowledgements

The authors are grateful to Dr S. Ramanathan, Principal, Presidency College (Autonomous), Chennai, India, and Rev. Fr A. Albert Muthumalai, S. J., Principal, Loyola College (Autonomous), Chennai, India, for providing the necessary facilities. The Head, SAIF, CDRI, Lucknow, India, is thanked for supplying the elemental analysis data and the Head, SAIF, IIT Madras, Chennai, India, for recording the NMR spectra and for the X-ray data collection.

References

Bruker (1999). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker-Nonius (2004). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Dayalan, A. & Vijayaraghavan, V. R. (2001). Indian J. Chem. Sect. A 40, 959-964.
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.
Flack, H. D. (1983). Acta Cryst. A39, 876-881.
Gupta, B. D., Singh, V., Quanango, K., Vijay Kanth, V., Yamuna, R., Barclay, T. & Cordes, W. (2000). J. Organomet. Chem. 602, 1-4.
Gupta, B. D., Tiwari, U., Barley, T. & Cordes, W. (2001). J. Organomet. Chem. 629, 83-92.
Gupta, B. D., Vijaykanth, V. & Singh, V. (2004). Organometallics, 23, 2067-2079.
Lee, D. N., Lee, E. Y., Kim, C., Kim, S.-J. & Kim, Y. (2007). Acta Cryst. E63, m1949-m1950.
Ohkubo, K. & Fukuzumi, S. (2005). J. Phys. Chem. 109, 1105-1113.
Razavelt, M., Artero, V. & Fentcave, M. (2005). Inorg. Chem. 44, 4786-4795.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2003). J. Appl. Cryst. 36, 7-13.
Trommel, J. S., Warncke, K. & Marzilli, L. G. (2001). J. Am. Chem. Soc. 123, 3358-3366.

metal-organic compounds

Dichlorido(dimethylglyoximato-2N,N')(dimethylglyoxime-2N,N')cobalt(III)