Tris(8-quinolinolato-κ2N,O)­cobalt(III) methanol solvate

Li, D.-X.; Xu, D.-J.; Gu, J.-M.; Xu, Y.-Z.

doi:10.1107/S1600536803014211

Tris(8-quinolinolato-κ²N,O)cobalt(III) methanol solvate

D.-X. Li, D.-J. Xu, J.-M. Gu and Y.-Z. Xu

The title cobalt(III) complex, [Co(C₉H₆NO)₃]·CH₃OH, features three 8-quinolinolate ligands that chelate the cobalt(III) atom with an octahedral coordination geometry. The methanol solvent molecule is disordered in the structure. The O

O distances 2.726 (7) and 2.871 (8) Å between the quinolinol hydroxyl and disordered methanol suggest the existence of hydrogen bonding. The separation distances of 3.404 (15) and 3.386 (7) Å between parallel quinoline rings indicate π–π stacking between neighboring complex molecules.

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Supporting information

	Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536803014211/om6151sup1.cif Contains datablocks I, global
	Structure factor file (CIF format) https://doi.org/10.1107/S1600536803014211/om6151Isup2.hkl Contains datablock I

CCDC reference: 217429

checkCIF report

Key indicators

Single-crystal X-ray study
T = 298 K
Mean (C-C) = 0.005 Å
H-atom completeness 82%
Disorder in solvent or counterion
R factor = 0.042
wR factor = 0.130
Data-to-parameter ratio = 16.8

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



PLAT_302  Alert C Anion/Solvent Disorder .........................      50.00 Perc.

General Notes



FORMU_01  There is a discrepancy between the atom counts in the
          _chemical_formula_sum and the formula from the _atom_site* data.
          Atom count from _chemical_formula_sum:C28 H22 Co1 N3 O4
          Atom count from the _atom_site data:  C28 H18 Co1 N3 O4

CELLZ_01
         From the CIF: _cell_formula_units_Z    4
         From the CIF: _chemical_formula_sum  C28 H22 Co N3 O4
         TEST: Compare cell contents of formula and atom_site data

         atom    Z*formula  cif sites diff
         C        112.00    112.00    0.00
         H         88.00     72.00   16.00
         Co         4.00      4.00    0.00
         N         12.00     12.00    0.00
         O         16.00     16.00    0.00
          Difference between formula and atom_site contents detected.
          WARNING: H atoms missing from atom site list. Is this intentional?


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 1 Alert Level C = Please check

Comment top

As a part of an investigation on the π–π-stacking interaction in metal complexes, several 8-quinolinolate metal complexes have been prepared in our laboratory (Li et al., 2003). Compound (I) is a representative of this group.

The structure of (I) is shown in Fig. 1. Three 8-quinolinolate monoanions chelate to the Co^III atom with an octahedral coordination geometry. The planar 8-quinolinolate are nearly perpendicular to each other with dihedral angles of 93.80 (7), 95.34 (6) and 91.49 (7)°. The overlapped arrangement of neighboring parallel quinoline rings is shown in Fig. 2. The quinoline plane containing N11 is separated from the quinoline plane containing N11(1 − x, 1 − y, 1 − z) by 3.404 (15) Å. Likewise, the quinoline plane containing N31 atom is separated from the quinoline plane containing N31(1 − x, 1 − y, −z) by 3.386 (7) Å. These findings indicate the existence of the π–π stacking between the neighboring complex molecules.

The solvate methanol is disordered, either C or O atoms located in two sites with 0.5 occupancy factors. Although H atoms of the disordered methanol were not located, the O1a···O11 distance of 2.726 (7) Å and the O1b···O11 distance of 2.871 (8) Å suggest the existence of hydrogen bonding between the quinolinol hydroxyl group and the disordered methanol molecule. The C24—H24···O1b(0.5 − x, −0.5 + y, 0.5 − z) angle of 133° and the C24···O1b distance of 3.154 (8) Å suggest that the disordered methanol molecule is also involved in the weak hydrogen bonding.

Compound (I) is isomorphous with the manganese(III) compound (Hems & Mackay, 1975). The major difference between the Co and Mn complexes is the length of the coordination bonds: Mn—O distances range from 1.905 to 1.924 Å and Co—O distances range from 1.8975 (19) to 1.9066 (19) Å; Mn—N distances range from 2.059 to 2.266 Å, while Co—N distances range from 1.921 (2) to 1.936 (2) Å. The other difference between two structures is that the solvent methanol molecule in the Mn structrue was not treated with a disorder model, even though the C—O distance of 1.352 Å is shorter than the expected value.

Experimental top

The complex was prepared by refluxing the methanol solution (15 ml) containing CoCl₂·6H₂O (0.24 g, 1 mmol) and 8-quinolinol (0.15 g, 1 mmol) for 2 h. The resulting solution was filtered at room temperature. The brown single crystals were obtained from the filtrate after two weeks.

Computing details top

Data collection: PROCESS-AUTO (Rigaku, 1998); cell refinement: PROCESS-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).

Figures top

	Fig. 1. The molecular structure of (I), with ellipsoids drawn at the 30% probability level. Dashed lines indicate the hydrogen bonding.
	Fig. 2. A packing diagram showing the π–π interaction between neighboring quinoline rings.

Tris(8-quinolinolato-κ²N,O)cobalt(III) methanol solvate top

Crystal data top

[Co(C₉H₆NO)₃]·CH₄O	F(000) = 1080
M_r = 523.42	D_x = 1.466 Mg m⁻³
Monoclinic, P2₁/n	Mo Kα radiation, λ = 0.71069 Å
Hall symbol: -P 2yn	Cell parameters from 9762 reflections
a = 10.9235 (12) Å	θ = 3.0–27.0°
b = 13.1172 (14) Å	µ = 0.77 mm⁻¹
c = 16.6861 (14) Å	T = 298 K
β = 97.325 (8)°	Prism, brown
V = 2371.4 (4) Å³	0.36 × 0.20 × 0.10 mm
Z = 4

Data collection top

Rigaku R-AXIS-RAPID diffractometer	5432 independent reflections
Radiation source: fine-focus sealed tube	4009 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.020
Detector resolution: 10.00 pixels mm^-1	θ_max = 27.5°, θ_min = 2.0°
ω scans	h = −14→14
Absorption correction: multi-scan (ABSCOR; Higashi, 1995)	k = −17→17
T_min = 0.750, T_max = 0.918	l = −21→21
10460 measured reflections

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.042	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.130	H-atom parameters constrained
S = 1.04	w = 1/[σ²(F_o²) + (0.0805P)² + 0.1393P] where P = (F_o² + 2F_c²)/3
5432 reflections	(Δ/σ)_max = 0.003
323 parameters	Δρ_max = 0.59 e Å⁻³
0 restraints	Δρ_min = −0.42 e Å⁻³

Crystal data top

[Co(C₉H₆NO)₃]·CH₄O	V = 2371.4 (4) Å³
M_r = 523.42	Z = 4
Monoclinic, P2₁/n	Mo Kα radiation
a = 10.9235 (12) Å	µ = 0.77 mm⁻¹
b = 13.1172 (14) Å	T = 298 K
c = 16.6861 (14) Å	0.36 × 0.20 × 0.10 mm
β = 97.325 (8)°

Data collection top

Rigaku R-AXIS-RAPID diffractometer	5432 independent reflections
Absorption correction: multi-scan (ABSCOR; Higashi, 1995)	4009 reflections with I > 2σ(I)
T_min = 0.750, T_max = 0.918	R_int = 0.020
10460 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.042	0 restraints
wR(F²) = 0.130	H-atom parameters constrained
S = 1.04	Δρ_max = 0.59 e Å⁻³
5432 reflections	Δρ_min = −0.42 e Å⁻³
323 parameters

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq	Occ. (<1)
Co	0.42453 (3)	0.52085 (3)	0.240612 (18)	0.03029 (12)
O11	0.25371 (17)	0.51074 (15)	0.25265 (11)	0.0397 (4)
O21	0.59627 (16)	0.52675 (14)	0.23257 (11)	0.0363 (4)
O31	0.40960 (18)	0.65942 (14)	0.20819 (11)	0.0396 (4)
N11	0.4467 (2)	0.56689 (17)	0.35082 (12)	0.0363 (5)
N21	0.45475 (19)	0.38159 (16)	0.27347 (12)	0.0314 (4)
N31	0.3862 (2)	0.48847 (16)	0.12697 (12)	0.0333 (5)
C10	0.3259 (3)	0.6040 (2)	0.46019 (16)	0.0498 (8)
C12	0.5483 (3)	0.5981 (2)	0.39558 (17)	0.0478 (7)
H12	0.6232	0.5969	0.3746	0.057*
C13	0.5438 (4)	0.6332 (3)	0.47470 (19)	0.0596 (9)
H13	0.6158	0.6553	0.5056	0.072*
C14	0.4372 (4)	0.6351 (3)	0.50610 (17)	0.0610 (9)
H14	0.4363	0.6573	0.5590	0.073*
C15	0.2088 (4)	0.6023 (3)	0.4859 (2)	0.0636 (10)
H15	0.1989	0.6222	0.5381	0.076*
C16	0.1087 (4)	0.5712 (3)	0.4333 (2)	0.0666 (10)
H16	0.0313	0.5714	0.4509	0.080*
C17	0.1182 (3)	0.5389 (2)	0.3540 (2)	0.0524 (8)
H17	0.0483	0.5180	0.3203	0.063*
C18	0.2328 (3)	0.5386 (2)	0.32625 (16)	0.0395 (6)
C19	0.3365 (3)	0.5703 (2)	0.38057 (15)	0.0378 (6)
C20	0.6257 (3)	0.2599 (2)	0.29467 (15)	0.0384 (6)
C22	0.3766 (3)	0.3107 (2)	0.29318 (16)	0.0408 (6)
H22	0.2934	0.3266	0.2920	0.049*
C23	0.4182 (3)	0.2123 (2)	0.31575 (18)	0.0494 (7)
H23	0.3626	0.1641	0.3304	0.059*
C24	0.5394 (3)	0.1865 (2)	0.31634 (18)	0.0482 (7)
H24	0.5658	0.1209	0.3309	0.058*
C25	0.7527 (3)	0.2434 (2)	0.29262 (17)	0.0491 (7)
H25	0.7871	0.1796	0.3051	0.059*
C26	0.8243 (3)	0.3213 (3)	0.27227 (18)	0.0507 (8)
H26	0.9081	0.3095	0.2713	0.061*
C27	0.7772 (3)	0.4191 (2)	0.25265 (17)	0.0454 (7)
H27	0.8297	0.4707	0.2398	0.054*
C28	0.6517 (2)	0.4386 (2)	0.25241 (14)	0.0336 (5)
C29	0.5768 (2)	0.3571 (2)	0.27431 (13)	0.0314 (5)
C30	0.3434 (2)	0.5764 (2)	−0.00203 (15)	0.0412 (6)
C32	0.3725 (3)	0.4000 (2)	0.08936 (16)	0.0410 (6)
H32	0.3817	0.3402	0.1195	0.049*
C33	0.3444 (3)	0.3934 (3)	0.00479 (17)	0.0492 (7)
H33	0.3353	0.3301	−0.0202	0.059*
C34	0.3306 (3)	0.4800 (3)	−0.04010 (17)	0.0493 (7)
H34	0.3127	0.4759	−0.0960	0.059*
C35	0.3337 (3)	0.6719 (3)	−0.04178 (18)	0.0513 (8)
H35	0.3142	0.6752	−0.0976	0.062*
C36	0.3531 (3)	0.7587 (3)	0.00256 (18)	0.0521 (8)
H36	0.3482	0.8208	−0.0245	0.063*
C37	0.3801 (3)	0.7594 (2)	0.08720 (17)	0.0445 (6)
H37	0.3923	0.8208	0.1149	0.053*
C38	0.3886 (2)	0.6677 (2)	0.12899 (16)	0.0359 (6)
C39	0.3721 (2)	0.5767 (2)	0.08324 (14)	0.0336 (5)
C1a	0.0264 (11)	0.3915 (10)	0.0861 (8)	0.111 (4)*	0.50
C1b	0.0423 (8)	0.3573 (7)	0.1223 (6)	0.073 (2)*	0.50
O1a	0.0379 (6)	0.4409 (5)	0.1711 (4)	0.0774 (17)*	0.50
O1b	0.0416 (6)	0.4653 (6)	0.1382 (5)	0.088 (2)*	0.50

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Co	0.03250 (19)	0.03052 (19)	0.02821 (17)	0.00119 (14)	0.00521 (12)	−0.00099 (14)
O11	0.0334 (10)	0.0475 (11)	0.0384 (9)	0.0051 (8)	0.0056 (7)	−0.0030 (8)
O21	0.0341 (9)	0.0346 (10)	0.0412 (9)	−0.0022 (8)	0.0086 (7)	0.0054 (8)
O31	0.0512 (12)	0.0320 (10)	0.0352 (9)	0.0027 (8)	0.0038 (8)	−0.0026 (7)
N11	0.0451 (13)	0.0316 (12)	0.0319 (10)	0.0005 (10)	0.0043 (9)	0.0006 (9)
N21	0.0322 (11)	0.0320 (11)	0.0311 (10)	−0.0020 (9)	0.0078 (8)	−0.0015 (8)
N31	0.0335 (11)	0.0356 (11)	0.0318 (10)	0.0016 (9)	0.0078 (8)	−0.0020 (9)
C10	0.080 (2)	0.0380 (16)	0.0342 (14)	0.0080 (15)	0.0183 (14)	0.0010 (11)
C12	0.0527 (18)	0.0476 (18)	0.0412 (15)	−0.0076 (14)	−0.0007 (13)	−0.0024 (12)
C13	0.079 (2)	0.056 (2)	0.0405 (16)	−0.0138 (18)	−0.0039 (16)	−0.0074 (14)
C14	0.103 (3)	0.0487 (19)	0.0312 (15)	−0.0030 (19)	0.0095 (16)	−0.0074 (13)
C15	0.088 (3)	0.059 (2)	0.0511 (18)	0.0156 (19)	0.0366 (19)	0.0006 (16)
C16	0.070 (2)	0.066 (2)	0.073 (2)	0.0205 (19)	0.047 (2)	0.0168 (19)
C17	0.0449 (17)	0.052 (2)	0.0638 (19)	0.0102 (14)	0.0198 (14)	0.0119 (15)
C18	0.0435 (15)	0.0343 (15)	0.0425 (14)	0.0089 (11)	0.0123 (12)	0.0047 (11)
C19	0.0505 (16)	0.0299 (14)	0.0347 (12)	0.0060 (11)	0.0124 (11)	0.0030 (10)
C20	0.0480 (16)	0.0353 (14)	0.0319 (12)	0.0043 (12)	0.0056 (11)	−0.0016 (10)
C22	0.0414 (15)	0.0382 (15)	0.0441 (15)	−0.0064 (12)	0.0111 (12)	−0.0007 (11)
C23	0.0589 (19)	0.0345 (15)	0.0572 (18)	−0.0131 (14)	0.0162 (15)	−0.0005 (13)
C24	0.065 (2)	0.0308 (15)	0.0485 (16)	0.0015 (13)	0.0073 (14)	−0.0016 (12)
C25	0.0506 (18)	0.0488 (18)	0.0475 (16)	0.0179 (14)	0.0043 (13)	0.0030 (13)
C26	0.0341 (15)	0.069 (2)	0.0485 (16)	0.0134 (14)	0.0037 (12)	0.0028 (15)
C27	0.0323 (14)	0.0585 (19)	0.0455 (15)	−0.0028 (13)	0.0057 (12)	0.0049 (13)
C28	0.0345 (13)	0.0391 (14)	0.0276 (11)	0.0002 (11)	0.0056 (10)	0.0001 (10)
C29	0.0353 (13)	0.0343 (13)	0.0252 (11)	0.0005 (10)	0.0065 (10)	−0.0022 (9)
C30	0.0367 (14)	0.0532 (18)	0.0343 (13)	−0.0004 (13)	0.0064 (11)	0.0031 (12)
C32	0.0469 (16)	0.0390 (15)	0.0376 (13)	0.0021 (12)	0.0072 (11)	−0.0034 (11)
C33	0.0559 (19)	0.0528 (19)	0.0390 (15)	−0.0056 (14)	0.0066 (13)	−0.0143 (13)
C34	0.0537 (18)	0.063 (2)	0.0313 (13)	−0.0060 (15)	0.0052 (12)	−0.0062 (13)
C35	0.0533 (18)	0.063 (2)	0.0372 (15)	−0.0011 (15)	0.0038 (13)	0.0132 (13)
C36	0.0498 (18)	0.0522 (19)	0.0547 (18)	0.0015 (15)	0.0081 (14)	0.0219 (15)
C37	0.0436 (16)	0.0384 (15)	0.0521 (16)	−0.0003 (12)	0.0081 (13)	0.0062 (12)
C38	0.0307 (13)	0.0374 (14)	0.0401 (14)	0.0025 (11)	0.0070 (10)	0.0025 (11)
C39	0.0311 (13)	0.0373 (14)	0.0330 (12)	0.0007 (11)	0.0062 (10)	0.0015 (10)

Geometric parameters (Å, º) top

Co—O31	1.8975 (19)	C20—C25	1.409 (4)
Co—O21	1.8994 (18)	C20—C24	1.425 (4)
Co—O11	1.9066 (19)	C22—C23	1.404 (4)
Co—N11	1.921 (2)	C22—H22	0.93
Co—N21	1.924 (2)	C23—C24	1.366 (4)
Co—N31	1.936 (2)	C23—H23	0.93
O11—C18	1.329 (3)	C24—H24	0.93
O21—C28	1.327 (3)	C25—C26	1.356 (5)
O31—C38	1.317 (3)	C25—H25	0.93
N11—C12	1.321 (4)	C26—C27	1.405 (4)
N11—C19	1.361 (3)	C26—H26	0.93
N21—C22	1.332 (3)	C27—C28	1.395 (4)
N21—C29	1.369 (3)	C27—H27	0.93
N31—C32	1.319 (3)	C28—C29	1.422 (4)
N31—C39	1.366 (3)	C30—C34	1.414 (4)
C10—C15	1.400 (5)	C30—C35	1.415 (4)
C10—C14	1.412 (5)	C30—C39	1.417 (3)
C10—C19	1.419 (4)	C32—C33	1.408 (4)
C12—C13	1.405 (4)	C32—H32	0.93
C12—H12	0.93	C33—C34	1.359 (4)
C13—C14	1.337 (5)	C33—H33	0.93
C13—H13	0.93	C34—H34	0.93
C14—H14	0.93	C35—C36	1.359 (5)
C15—C16	1.374 (5)	C35—H35	0.93
C15—H15	0.93	C36—C37	1.406 (4)
C16—C17	1.405 (5)	C36—H36	0.93
C16—H16	0.93	C37—C38	1.387 (4)
C17—C18	1.389 (4)	C37—H37	0.93
C17—H17	0.93	C38—C39	1.416 (4)
C18—C19	1.420 (4)	C1a—O1a	1.551 (14)
C20—C29	1.407 (4)	C1b—O1b	1.442 (12)

O31—Co—O21	89.46 (8)	C29—C20—C25	118.6 (3)
O31—Co—O11	92.70 (8)	C29—C20—C24	115.5 (3)
O21—Co—O11	177.41 (8)	C25—C20—C24	125.9 (3)
O31—Co—N11	88.14 (9)	N21—C22—C23	120.9 (3)
O21—Co—N11	92.83 (9)	N21—C22—H22	119.6
O11—Co—N11	85.81 (9)	C23—C22—H22	119.6
O31—Co—N21	175.06 (8)	C24—C23—C22	120.6 (3)
O21—Co—N21	85.62 (8)	C24—C23—H23	119.7
O11—Co—N21	92.21 (8)	C22—C23—H23	119.7
N11—Co—N21	91.69 (9)	C23—C24—C20	120.2 (3)
O31—Co—N31	86.04 (8)	C23—C24—H24	119.9
O21—Co—N31	91.83 (8)	C20—C24—H24	119.9
O11—Co—N31	89.75 (8)	C26—C25—C20	119.4 (3)
N11—Co—N31	172.51 (9)	C26—C25—H25	120.3
N21—Co—N31	94.51 (9)	C20—C25—H25	120.3
C18—O11—Co	111.35 (17)	C25—C26—C27	122.7 (3)
C28—O21—Co	111.71 (15)	C25—C26—H26	118.7
C38—O31—Co	111.28 (16)	C27—C26—H26	118.7
C12—N11—C19	120.1 (2)	C28—C27—C26	120.0 (3)
C12—N11—Co	129.3 (2)	C28—C27—H27	120.0
C19—N11—Co	110.48 (17)	C26—C27—H27	120.0
C22—N21—C29	119.2 (2)	O21—C28—C27	125.3 (2)
C22—N21—Co	129.90 (19)	O21—C28—C29	117.4 (2)
C29—N21—Co	110.91 (16)	C27—C28—C29	117.3 (2)
C32—N31—C39	119.5 (2)	N21—C29—C20	123.6 (2)
C32—N31—Co	131.02 (19)	N21—C29—C28	114.4 (2)
C39—N31—Co	109.45 (17)	C20—C29—C28	122.0 (2)
C15—C10—C14	126.5 (3)	C34—C30—C35	125.7 (3)
C15—C10—C19	118.0 (3)	C34—C30—C39	116.7 (3)
C14—C10—C19	115.5 (3)	C35—C30—C39	117.5 (3)
N11—C12—C13	120.4 (3)	N31—C32—C33	121.8 (3)
N11—C12—H12	119.8	N31—C32—H32	119.1
C13—C12—H12	119.8	C33—C32—H32	119.1
C14—C13—C12	120.7 (3)	C34—C33—C32	119.7 (3)
C14—C13—H13	119.6	C34—C33—H33	120.1
C12—C13—H13	119.6	C32—C33—H33	120.1
C13—C14—C10	121.0 (3)	C33—C34—C30	120.2 (3)
C13—C14—H14	119.5	C33—C34—H34	119.9
C10—C14—H14	119.5	C30—C34—H34	119.9
C16—C15—C10	119.5 (3)	C36—C35—C30	119.3 (3)
C16—C15—H15	120.2	C36—C35—H35	120.4
C10—C15—H15	120.2	C30—C35—H35	120.4
C15—C16—C17	122.8 (3)	C35—C36—C37	123.4 (3)
C15—C16—H16	118.6	C35—C36—H36	118.3
C17—C16—H16	118.6	C37—C36—H36	118.3
C18—C17—C16	119.5 (3)	C38—C37—C36	119.4 (3)
C18—C17—H17	120.2	C38—C37—H37	120.3
C16—C17—H17	120.2	C36—C37—H37	120.3
O11—C18—C17	125.3 (3)	O31—C38—C37	124.6 (3)
O11—C18—C19	117.0 (2)	O31—C38—C39	117.7 (2)
C17—C18—C19	117.8 (3)	C37—C38—C39	117.6 (2)
N11—C19—C10	122.3 (3)	N31—C39—C38	115.3 (2)
N11—C19—C18	115.4 (2)	N31—C39—C30	122.0 (2)
C10—C19—C18	122.4 (3)	C38—C39—C30	122.7 (2)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
C12—H12···O21	0.93	2.52	2.985 (3)	111
C22—H22···O11	0.93	2.53	2.985 (3)	111
C24—H24···O1b	0.93	2.44	3.154 (8)	133
C25—H25···O21	0.93	2.50	3.339 (4)	151

Experimental details

Crystal data
Chemical formula	[Co(C₉H₆NO)₃]·CH₄O
M_r	523.42
Crystal system, space group	Monoclinic, P2₁/n
Temperature (K)	298
a, b, c (Å)	10.9235 (12), 13.1172 (14), 16.6861 (14)
β (°)	97.325 (8)
V (Å³)	2371.4 (4)
Z	4
Radiation type	Mo Kα
µ (mm⁻¹)	0.77
Crystal size (mm)	0.36 × 0.20 × 0.10

Data collection
Diffractometer	Rigaku R-AXIS-RAPID diffractometer
Absorption correction	Multi-scan (ABSCOR; Higashi, 1995)
T_min, T_max	0.750, 0.918
No. of measured, independent and observed [I > 2σ(I)] reflections	10460, 5432, 4009
R_int	0.020
(sin θ/λ)_max (Å⁻¹)	0.650

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.042, 0.130, 1.04
No. of reflections	5432
No. of parameters	323
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.59, −0.42

Computer programs: PROCESS-AUTO (Rigaku, 1998), PROCESS-AUTO, CrystalStructure (Rigaku/MSC, 2002), SIR92 (Altomare et al., 1993), SHELXL97 (Sheldrick, 1997), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).

Selected bond lengths (Å) top

Co—O31	1.8975 (19)	Co—N11	1.921 (2)
Co—O21	1.8994 (18)	Co—N21	1.924 (2)
Co—O11	1.9066 (19)	Co—N31	1.936 (2)

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Tris(8-quinolinolato-κ2N,O)­cobalt(III) methanol solvate

Supporting information

Key indicators

checkCIF results

Tris(8-quinolinolato-κ²N,O)cobalt(III) methanol solvate