Bis(μ-2-methyl­quinolin-8-olato)-κ3N,O:O;κ3O:N,O-bis­[(acetato-κO)(methanol-κO)zinc(II)]

Sattarzadeh, E.; Mohammadnezhad, G.; Amini, M.M.; Ng, S.W.

doi:10.1107/S1600536809014214

Volume 65
Part 5
Page m554
May 2009

Received 15 April 2009
Accepted 16 April 2009
Online 22 April 2009

Key indicators
Single-crystal X-ray study
T = 100 K
Mean (C-C) = 0.008 Å
R = 0.076
wR = 0.230
Data-to-parameter ratio = 16.3
Details

Bis(-2-methylquinolin-8-olato)-³N,O:O;³O:N,O-bis[(acetato-O)(methanol-O)zinc(II)]

Elham Sattarzadeh,^a Gholamhossein Mohammadnezhad,^a Mostafa M. Amini ^a and Seik Weng Ng ^b ^*

^aDepartment of Chemistry, General Campus, Shahid Beheshti University, Tehran 1983963113, Iran, and ^bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
Correspondence e-mail: seikweng@um.edu.my

The reaction of zinc acetate and 2-methyl-8-hydroxyquinoline in methanol yielded the centrosymmetric dinuclear title compound, [Zn₂(C₁₀H₈NO)₂(CH₃CO₂)₂(CH₃OH)₂], which has the Zn atom within a distorted NO₄ trigonal-bipyramidal coordination geometry. Methanol-acetate O-HO hydrogen bonds link the dinculear units into a linear supramolecular chain extending parallel to [100].

Related literature

Unlike 8-hydroxyquinoline, which yields a large number of metal derivatives, 2-methyl-8-hydroxyquinoline forms only a small number of metal chelates. Besides a related chloride salt (Sattarzadeh et al., 2009), there is only one crystal structure report of another zinc derivative; for aquabis(2-methylquinolin-8-ato)zinc, see: da Silva et al. (2007).

Experimental

Crystal data

[Zn₂(C₁₀H₈NO)₂(C₂H₃O₂)₂(CH₄O)₂]
M_r = 629.26
Triclinic, $[P \overline 1]$
a = 6.9496 (1) Å
b = 9.6262 (2) Å
c = 9.8232 (2) Å
= 75.241 (1)°
= 89.688 (1)°
= 86.596 (1)°
V = 634.32 (2) Å³
Z = 1
Mo K radiation
= 1.95 mm^-1
T = 100 K
0.38 × 0.28 × 0.18 mm

Data collection

Bruker SMART APEX diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) T_min = 0.525, T_max = 0.721
5601 measured reflections
2855 independent reflections
2534 reflections with I > 2(I)
R_int = 0.042

Refinement

R[F² > 2(F²)] = 0.076
wR(F²) = 0.230
S = 1.13
2855 reflections
175 parameters
H-atom parameters constrained
_max = 3.72 e Å^-3
_min = -1.85 e Å^-3

Table 1
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
O4-H4O3ⁱ	0.84	1.88	2.602 (6)	143
Symmetry code: (i) x+1, y, z.

Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2009).

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: TK2424 ).

Acknowledgements

The authors thank Shahid Beheshti University and the University of Malaya for supporting this study.

References

Barbour, L. J. (2001). J. Supramol. Chem. 1, 189-191.
Bruker (2008). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Sattarzadeh, E., Mohammadnezhad, G., Amini, M. M. & Ng, S. W. (2009). Acta Cryst. E65, m553.
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Silva, L. E. da, Joussef, A. C., Rebelo, R. A., Foro, S. & Schmidt, B. (2007). Acta Cryst. E63, m129-m131.
Westrip, S. P. (2009). publCIF. In preparation.

metal-organic compounds

Bis(-2-methylquinolin-8-olato)-3N,O:O;3O:N,O-bis[(acetato-O)(methanol-O)zinc(II)]