(Amino­acetato-κ2 O,N)bis­(quinolin-8-olato-κ2 O,N)cobalt(III) methanol solvate

Bu-Qin Jing; Shuang-Ming Meng; Jing Han; Bin Wang; Xue-Mei Li

doi:10.1107/S1600536808013135

. 2008 May 10;64(Pt 6):m795. doi: 10.1107/S1600536808013135

(Aminoacetato-κ² O,N)bis(quinolin-8-olato-κ² O,N)cobalt(III) methanol solvate

Bu-Qin Jing ^a,^*, Shuang-Ming Meng ^a, Jing Han ^a, Bin Wang ^a, Xue-Mei Li ^a

PMCID: PMC2961573 PMID: 21202483

Abstract

In the crystal structure of the title compound, [Co(C₂H₄NO₂)(C₉H₆NO)₂]·CH₃OH, the Co^III atom is chelated by two quinolin-8-olate and one glycinate anions in a distorted octahedral coordination geometry. The five-membered chelating glycinate ring assumes an envelope conformation. The complex molecules are assembled by intermolecular N—H⋯O hydrogen bonding.

Related literature

For a related structure, see: Li et al. (2003 ▶).

Experimental

Crystal data

[Co(C₂H₄NO₂)(C₉H₆NO)₂]·CH₄O
M _r = 453.33
Triclinic,
a = 9.8377 (4) Å
b = 10.6526 (4) Å
c = 10.7369 (4) Å
α = 82.047 (1)°
β = 76.289 (1)°
γ = 64.941 (1)°
V = 989.32 (7) Å³
Z = 2
Mo Kα radiation
μ = 0.91 mm⁻¹
T = 273 (2) K
0.20 × 0.15 × 0.12 mm

Data collection

Bruker SMART CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996 ▶) T _min = 0.840, T _max = 0.899
11346 measured reflections
3486 independent reflections
3261 reflections with I > 2σ(I)
R _int = 0.017

Refinement

R[F ² > 2σ(F ²)] = 0.028
wR(F ²) = 0.093
S = 1.00
3486 reflections
281 parameters
H atoms treated by a mixture of independent and constrained refinement
Δρ_max = 0.28 e Å⁻³
Δρ_min = −0.36 e Å⁻³

Data collection: SMART (Siemens, 1996 ▶); cell refinement: SAINT (Siemens, 1996 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.

Supplementary Material

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536808013135/xu2418sup1.cif

e-64-0m795-sup1.cif^{(20.2KB, cif)}

Structure factors: contains datablocks I. DOI: 10.1107/S1600536808013135/xu2418Isup2.hkl

e-64-0m795-Isup2.hkl^{(170.9KB, hkl)}

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

Enhanced figure: interactive version of Fig. 3

Table 1. Selected geometric parameters (Å, °).

Co1—O1	1.9045 (12)
Co1—O3	1.8926 (13)
Co1—O4	1.9002 (13)
Co1—N1	1.9373 (14)
Co1—N2	1.9179 (15)
Co1—N3	1.9309 (15)

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O3—Co1—O4	90.60 (6)
O3—Co1—O1	89.93 (6)
O4—Co1—O1	176.81 (5)
O3—Co1—N2	176.47 (5)
O4—Co1—N2	85.88 (6)
O1—Co1—N2	93.56 (6)
O3—Co1—N3	87.07 (7)
O4—Co1—N3	91.14 (6)
O1—Co1—N3	85.75 (6)
N2—Co1—N3	92.71 (7)
O3—Co1—N1	85.82 (6)
O4—Co1—N1	92.39 (6)
O1—Co1—N1	90.79 (6)
N2—Co1—N1	94.60 (6)
N3—Co1—N1	172.09 (7)

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Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O5—H5⋯O2ⁱ	0.82	1.92	2.743 (3)	175
N3—H21⋯O5	0.85 (2)	2.17 (3)	2.950 (3)	153 (2)
N3—H22⋯O3ⁱⁱ	0.86 (3)	2.10 (3)	2.952 (2)	169 (2)

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Symmetry codes: (i) Inline graphic ; (ii) .

Acknowledgments

This work was supported by the Youth Science Foundation of Shanxi Datong University, China (No. 2007Q08).

supplementary crystallographic information

Comment

The 8–hydroxyquinoline (HQ) is a very good ligand, forms complex compounds with various metal ions in solution. The strong chelating action of HQ in solution has been extensively studied and widely used in analytical chemistry. In this work, we use glycin and 8–hydroxyquinoline as bidedtate ligand to synthesize the title complex, (I).

The molecular structure of the title compound is shown in Fig. 1. The Co^III atom is chelated by two 8-hydroxyquinoline and one glycin anions in a distorted octahedral coordination geometry. The Co—N bond distances are longer than Co—O bond distances (Table 1), which agrees with that found in a related structure, tris(8-quinolinolato)-cobalt(III) methanol solvate (Li et al. 2003). The two 8-hydroxyquinolate rings are almost perpendicular to each other with a dihedral angle of 81.0°. The five-membered chelating ring of the glycin assumes an envelope conformation, with N3 atom at the flap position. The complex molecules are assembled by intermolecular N–H···O hydrogen bonding (Table 2). Lattice methanol molecule is linked with complex via O—H···O and N—H···O hydrogen bonding (Fig. 2).