metal-organic compounds
Bis(μ-2-methylquinolin-8-olato)-κ3N,O:O;κ3O:N,O-bis[(acetato-κO)(methanol-κO)zinc(II)]
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—H⋯O 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 report of another zinc derivative; for aquabis(2-methylquinolin-8-ato)zinc, see: da Silva et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2008); cell 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).
Supporting information
10.1107/S1600536809014214/tk2424sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809014214/tk2424Isup2.hkl
Zinc acetate (0.17 g, 0.75 mmol) and 2-methyl-8-hydroxyquinoline (0.24 g, 1.5 mmol) were loaded into a convection tube; the tube was filled with dry methanol and kept at 333 K. Crystals were collected from the side arm after several days. Although well formed, all specimens had a slightly blemished interior.
The crystal used in the study was a multiply twinned crystal. The diffraction intensities were separated with the RLATT routine of the data collection software, and that component that diffracted to the highest 2θ limit was selected for integration. Although the specimen diffracted strongly, with a high proportion of 'observeds', there was serious overlapping between the main component and the minor components, particularly at low angles.
Carbon-bound H-atoms were placed in calculated positions (C—H 0.95 to 0.98 Å; O–H 0.84 Å) and were included in the
in the riding model approximation, with U(H) set to 1.2 to 1.5U(C, O).The final difference Fourier map had a large peak/deep hole in the vicinity of the Zn1 atom. These could not be reduced even with the 2θ maximum was lowered to 50 °.
Data collection: APEX2 (Bruker, 2008); cell
SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); 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).[Zn2(C10H8NO)2(C2H3O2)2(CH4O)2] | Z = 1 |
Mr = 629.26 | F(000) = 324 |
Triclinic, P1 | Dx = 1.647 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 6.9496 (1) Å | Cell parameters from 3551 reflections |
b = 9.6262 (2) Å | θ = 2.2–28.3° |
c = 9.8232 (2) Å | µ = 1.95 mm−1 |
α = 75.241 (1)° | T = 100 K |
β = 89.688 (1)° | Block, yellow |
γ = 86.596 (1)° | 0.38 × 0.28 × 0.18 mm |
V = 634.32 (2) Å3 |
Bruker SMART APEX diffractometer | 2855 independent reflections |
Radiation source: fine-focus sealed tube | 2534 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.042 |
ω scans | θmax = 27.5°, θmin = 2.1° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −9→9 |
Tmin = 0.525, Tmax = 0.721 | k = −12→12 |
5601 measured reflections | l = −12→12 |
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)] = 0.076 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.230 | H-atom parameters constrained |
S = 1.13 | w = 1/[σ2(Fo2) + (0.1574P)2 + 1.7954P] where P = (Fo2 + 2Fc2)/3 |
2855 reflections | (Δ/σ)max = 0.001 |
175 parameters | Δρmax = 3.72 e Å−3 |
0 restraints | Δρmin = −1.85 e Å−3 |
[Zn2(C10H8NO)2(C2H3O2)2(CH4O)2] | γ = 86.596 (1)° |
Mr = 629.26 | V = 634.32 (2) Å3 |
Triclinic, P1 | Z = 1 |
a = 6.9496 (1) Å | Mo Kα radiation |
b = 9.6262 (2) Å | µ = 1.95 mm−1 |
c = 9.8232 (2) Å | T = 100 K |
α = 75.241 (1)° | 0.38 × 0.28 × 0.18 mm |
β = 89.688 (1)° |
Bruker SMART APEX diffractometer | 2855 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2534 reflections with I > 2σ(I) |
Tmin = 0.525, Tmax = 0.721 | Rint = 0.042 |
5601 measured reflections |
R[F2 > 2σ(F2)] = 0.076 | 0 restraints |
wR(F2) = 0.230 | H-atom parameters constrained |
S = 1.13 | Δρmax = 3.72 e Å−3 |
2855 reflections | Δρmin = −1.85 e Å−3 |
175 parameters |
x | y | z | Uiso*/Ueq | ||
Zn1 | 0.57254 (8) | 0.63131 (6) | 0.87572 (5) | 0.0148 (3) | |
O1 | 0.5349 (5) | 0.4205 (4) | 0.9193 (4) | 0.0174 (8) | |
O2 | 0.4331 (6) | 0.8211 (4) | 0.8160 (4) | 0.0201 (8) | |
O3 | 0.1619 (6) | 0.7137 (5) | 0.8017 (4) | 0.0236 (9) | |
O4 | 0.8356 (6) | 0.6830 (5) | 0.9340 (4) | 0.0233 (9) | |
H4 | 0.9089 | 0.7231 | 0.8695 | 0.028* | |
N1 | 0.6717 (6) | 0.5859 (5) | 0.6847 (5) | 0.0165 (9) | |
C1 | 0.5872 (7) | 0.3551 (6) | 0.8200 (5) | 0.0169 (10) | |
C2 | 0.5764 (8) | 0.2097 (6) | 0.8320 (6) | 0.0184 (10) | |
H2 | 0.5313 | 0.1493 | 0.9168 | 0.022* | |
C3 | 0.6315 (9) | 0.1497 (6) | 0.7196 (6) | 0.0229 (11) | |
H3 | 0.6238 | 0.0492 | 0.7303 | 0.028* | |
C4 | 0.6955 (8) | 0.2334 (6) | 0.5956 (6) | 0.0232 (11) | |
H4A | 0.7301 | 0.1912 | 0.5207 | 0.028* | |
C5 | 0.7104 (8) | 0.3827 (6) | 0.5786 (6) | 0.0191 (10) | |
C6 | 0.6596 (7) | 0.4431 (6) | 0.6917 (5) | 0.0150 (9) | |
C7 | 0.7707 (8) | 0.4776 (6) | 0.4547 (6) | 0.0196 (11) | |
H7 | 0.8029 | 0.4427 | 0.3748 | 0.023* | |
C8 | 0.7834 (8) | 0.6205 (6) | 0.4485 (5) | 0.0208 (11) | |
H8 | 0.8248 | 0.6846 | 0.3646 | 0.025* | |
C9 | 0.7341 (8) | 0.6730 (6) | 0.5687 (5) | 0.0178 (10) | |
C10 | 0.7542 (9) | 0.8281 (6) | 0.5643 (6) | 0.0227 (11) | |
H10A | 0.7336 | 0.8427 | 0.6586 | 0.034* | |
H10B | 0.6582 | 0.8879 | 0.4988 | 0.034* | |
H10C | 0.8838 | 0.8552 | 0.5326 | 0.034* | |
C11 | 0.2496 (8) | 0.8207 (6) | 0.8104 (5) | 0.0179 (10) | |
C12 | 0.1384 (9) | 0.9585 (7) | 0.8161 (7) | 0.0297 (13) | |
H12A | 0.2244 | 1.0381 | 0.7939 | 0.045* | |
H12B | 0.0864 | 0.9488 | 0.9108 | 0.045* | |
H12C | 0.0322 | 0.9780 | 0.7474 | 0.045* | |
C13 | 0.9045 (8) | 0.6565 (7) | 1.0750 (6) | 0.0233 (11) | |
H13A | 1.0426 | 0.6285 | 1.0786 | 0.035* | |
H13B | 0.8350 | 0.5787 | 1.1356 | 0.035* | |
H13C | 0.8832 | 0.7441 | 1.1079 | 0.035* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.0190 (4) | 0.0192 (4) | 0.0083 (4) | −0.0030 (2) | 0.0016 (2) | −0.0068 (2) |
O1 | 0.027 (2) | 0.0212 (18) | 0.0063 (16) | −0.0035 (15) | 0.0078 (14) | −0.0071 (14) |
O2 | 0.025 (2) | 0.0206 (19) | 0.0146 (17) | −0.0033 (15) | 0.0021 (15) | −0.0033 (14) |
O3 | 0.023 (2) | 0.032 (2) | 0.020 (2) | −0.0040 (16) | 0.0045 (16) | −0.0146 (17) |
O4 | 0.0186 (19) | 0.041 (2) | 0.0123 (18) | −0.0090 (16) | 0.0026 (14) | −0.0094 (16) |
N1 | 0.018 (2) | 0.024 (2) | 0.0098 (19) | −0.0017 (16) | −0.0004 (15) | −0.0079 (16) |
C1 | 0.018 (2) | 0.024 (3) | 0.012 (2) | −0.0030 (19) | 0.0016 (18) | −0.0084 (19) |
C2 | 0.023 (3) | 0.019 (2) | 0.015 (2) | −0.0026 (19) | 0.0028 (19) | −0.0058 (19) |
C3 | 0.030 (3) | 0.021 (3) | 0.021 (3) | 0.001 (2) | −0.002 (2) | −0.012 (2) |
C4 | 0.025 (3) | 0.029 (3) | 0.020 (3) | −0.001 (2) | 0.000 (2) | −0.015 (2) |
C5 | 0.017 (2) | 0.027 (3) | 0.016 (2) | 0.000 (2) | −0.0011 (19) | −0.012 (2) |
C6 | 0.017 (2) | 0.021 (2) | 0.008 (2) | 0.0006 (18) | 0.0004 (17) | −0.0055 (18) |
C7 | 0.018 (2) | 0.032 (3) | 0.012 (2) | 0.002 (2) | 0.0005 (19) | −0.012 (2) |
C8 | 0.020 (3) | 0.033 (3) | 0.010 (2) | −0.001 (2) | −0.0003 (19) | −0.008 (2) |
C9 | 0.018 (2) | 0.027 (3) | 0.009 (2) | −0.003 (2) | 0.0009 (18) | −0.0058 (19) |
C10 | 0.035 (3) | 0.023 (3) | 0.012 (2) | −0.006 (2) | 0.003 (2) | −0.006 (2) |
C11 | 0.020 (2) | 0.024 (3) | 0.010 (2) | 0.0004 (19) | 0.0012 (18) | −0.0057 (19) |
C12 | 0.027 (3) | 0.027 (3) | 0.034 (3) | 0.002 (2) | 0.002 (2) | −0.006 (2) |
C13 | 0.023 (3) | 0.035 (3) | 0.013 (2) | −0.004 (2) | 0.001 (2) | −0.009 (2) |
Zn1—O1 | 1.997 (4) | C4—C5 | 1.414 (8) |
Zn1—O2 | 1.968 (4) | C4—H4A | 0.9500 |
Zn1—O1i | 2.092 (3) | C5—C7 | 1.402 (8) |
Zn1—O4 | 2.045 (4) | C5—C6 | 1.413 (7) |
Zn1—N1 | 2.134 (4) | C7—C8 | 1.369 (8) |
O1—C1 | 1.328 (6) | C7—H7 | 0.9500 |
O1—Zn1i | 2.092 (3) | C8—C9 | 1.431 (7) |
O2—C11 | 1.277 (7) | C8—H8 | 0.9500 |
O3—C11 | 1.250 (7) | C9—C10 | 1.497 (7) |
O4—C13 | 1.423 (6) | C10—H10A | 0.9800 |
O4—H4 | 0.8400 | C10—H10B | 0.9800 |
N1—C9 | 1.319 (7) | C10—H10C | 0.9800 |
N1—C6 | 1.366 (7) | C11—C12 | 1.508 (8) |
C1—C2 | 1.381 (7) | C12—H12A | 0.9800 |
C1—C6 | 1.435 (7) | C12—H12B | 0.9800 |
C2—C3 | 1.412 (7) | C12—H12C | 0.9800 |
C2—H2 | 0.9500 | C13—H13A | 0.9800 |
C3—C4 | 1.366 (9) | C13—H13B | 0.9800 |
C3—H3 | 0.9500 | C13—H13C | 0.9800 |
O1—Zn1—O1i | 75.2 (2) | C6—C5—C4 | 119.1 (5) |
O1—Zn1—O2 | 142.5 (2) | N1—C6—C5 | 122.8 (5) |
O1—Zn1—O4 | 114.7 (2) | N1—C6—C1 | 116.8 (4) |
O1—Zn1—N1 | 79.8 (2) | C5—C6—C1 | 120.4 (5) |
O1i—Zn1—O2 | 95.8 (2) | C8—C7—C5 | 120.2 (5) |
O1i—Zn1—O4 | 94.5 (2) | C8—C7—H7 | 119.9 |
O1i—Zn1—N1 | 155.0 (2) | C5—C7—H7 | 119.9 |
O2—Zn1—O4 | 102.1 (2) | C7—C8—C9 | 119.9 (5) |
O2—Zn1—N1 | 104.7 (2) | C7—C8—H8 | 120.1 |
O4—Zn1—N1 | 95.0 (2) | C9—C8—H8 | 120.1 |
C1—O1—Zn1 | 116.2 (3) | N1—C9—C8 | 120.7 (5) |
C1—O1—Zn1i | 139.0 (3) | N1—C9—C10 | 119.2 (5) |
Zn1—O1—Zn1i | 104.81 (16) | C8—C9—C10 | 120.1 (5) |
C11—O2—Zn1 | 116.0 (3) | C9—C10—H10A | 109.5 |
C13—O4—Zn1 | 125.3 (3) | C9—C10—H10B | 109.5 |
C13—O4—H4 | 117.3 | H10A—C10—H10B | 109.5 |
Zn1—O4—H4 | 117.3 | C9—C10—H10C | 109.5 |
C9—N1—C6 | 119.7 (4) | H10A—C10—H10C | 109.5 |
C9—N1—Zn1 | 130.0 (4) | H10B—C10—H10C | 109.5 |
C6—N1—Zn1 | 110.3 (3) | O3—C11—O2 | 123.5 (5) |
O1—C1—C2 | 124.6 (5) | O3—C11—C12 | 120.0 (5) |
O1—C1—C6 | 117.0 (5) | O2—C11—C12 | 116.5 (5) |
C2—C1—C6 | 118.4 (5) | C11—C12—H12A | 109.5 |
C1—C2—C3 | 120.8 (5) | C11—C12—H12B | 109.5 |
C1—C2—H2 | 119.6 | H12A—C12—H12B | 109.5 |
C3—C2—H2 | 119.6 | C11—C12—H12C | 109.5 |
C4—C3—C2 | 121.2 (5) | H12A—C12—H12C | 109.5 |
C4—C3—H3 | 119.4 | H12B—C12—H12C | 109.5 |
C2—C3—H3 | 119.4 | O4—C13—H13A | 109.5 |
C3—C4—C5 | 120.1 (5) | O4—C13—H13B | 109.5 |
C3—C4—H4A | 119.9 | H13A—C13—H13B | 109.5 |
C5—C4—H4A | 119.9 | O4—C13—H13C | 109.5 |
C7—C5—C6 | 116.7 (5) | H13A—C13—H13C | 109.5 |
C7—C5—C4 | 124.2 (5) | H13B—C13—H13C | 109.5 |
O2—Zn1—O1—C1 | 102.0 (4) | C6—C1—C2—C3 | −1.3 (8) |
O4—Zn1—O1—C1 | −89.7 (4) | C1—C2—C3—C4 | −0.5 (9) |
O1i—Zn1—O1—C1 | −177.9 (5) | C2—C3—C4—C5 | 0.9 (9) |
N1—Zn1—O1—C1 | 1.1 (4) | C3—C4—C5—C7 | −178.6 (6) |
O2—Zn1—O1—Zn1i | −80.1 (3) | C3—C4—C5—C6 | 0.5 (8) |
O4—Zn1—O1—Zn1i | 88.17 (19) | C9—N1—C6—C5 | −0.4 (8) |
O1i—Zn1—O1—Zn1i | 0.0 | Zn1—N1—C6—C5 | 178.2 (4) |
N1—Zn1—O1—Zn1i | 179.0 (2) | C9—N1—C6—C1 | −178.9 (5) |
O1—Zn1—O2—C11 | 7.8 (5) | Zn1—N1—C6—C1 | −0.3 (6) |
O4—Zn1—O2—C11 | −161.4 (4) | C7—C5—C6—N1 | −1.5 (8) |
O1i—Zn1—O2—C11 | −65.4 (4) | C4—C5—C6—N1 | 179.3 (5) |
N1—Zn1—O2—C11 | 100.1 (4) | C7—C5—C6—C1 | 176.9 (5) |
O2—Zn1—O4—C13 | 107.2 (4) | C4—C5—C6—C1 | −2.3 (8) |
O1—Zn1—O4—C13 | −65.5 (5) | O1—C1—C6—N1 | 1.2 (7) |
O1i—Zn1—O4—C13 | 10.3 (4) | C2—C1—C6—N1 | −178.8 (5) |
N1—Zn1—O4—C13 | −146.6 (4) | O1—C1—C6—C5 | −177.3 (5) |
O2—Zn1—N1—C9 | 36.2 (5) | C2—C1—C6—C5 | 2.7 (8) |
O1—Zn1—N1—C9 | 178.0 (5) | C6—C5—C7—C8 | 1.8 (8) |
O4—Zn1—N1—C9 | −67.7 (5) | C4—C5—C7—C8 | −179.1 (5) |
O1i—Zn1—N1—C9 | −179.6 (4) | C5—C7—C8—C9 | −0.3 (8) |
O2—Zn1—N1—C6 | −142.2 (3) | C6—N1—C9—C8 | 2.1 (8) |
O1—Zn1—N1—C6 | −0.4 (3) | Zn1—N1—C9—C8 | −176.2 (4) |
O4—Zn1—N1—C6 | 113.9 (3) | C6—N1—C9—C10 | −177.6 (5) |
O1i—Zn1—N1—C6 | 1.9 (6) | Zn1—N1—C9—C10 | 4.1 (8) |
Zn1—O1—C1—C2 | 178.4 (4) | C7—C8—C9—N1 | −1.8 (8) |
Zn1i—O1—C1—C2 | 1.5 (9) | C7—C8—C9—C10 | 177.9 (5) |
Zn1—O1—C1—C6 | −1.6 (6) | Zn1—O2—C11—O3 | −20.5 (7) |
Zn1i—O1—C1—C6 | −178.5 (4) | Zn1—O2—C11—C12 | 159.0 (4) |
O1—C1—C2—C3 | 178.7 (5) |
Symmetry code: (i) −x+1, −y+1, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4···O3ii | 0.84 | 1.88 | 2.602 (6) | 143 |
Symmetry code: (ii) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | [Zn2(C10H8NO)2(C2H3O2)2(CH4O)2] |
Mr | 629.26 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 6.9496 (1), 9.6262 (2), 9.8232 (2) |
α, β, γ (°) | 75.241 (1), 89.688 (1), 86.596 (1) |
V (Å3) | 634.32 (2) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 1.95 |
Crystal size (mm) | 0.38 × 0.28 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART APEX diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.525, 0.721 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5601, 2855, 2534 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.076, 0.230, 1.13 |
No. of reflections | 2855 |
No. of parameters | 175 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 3.72, −1.85 |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4···O3i | 0.84 | 1.88 | 2.602 (6) | 143 |
Symmetry code: (i) x+1, y, z. |
Acknowledgements
The authors thank Shahid Beheshti University and the University of Malaya for supporting this study.
References
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