metal-organic compounds
[Bis(3,5-dimethylpyrazol-1-yl)methane]{N-[1-(2-oxidophenyl)ethylidene]-DL-alaninato}copper(II) monohydrate
aSchool of Chemistry and Chemical Engineering, Pingdingshan University, Pingdingshan 467000, People's Republic of China
*Correspondence e-mail: zgq1118@163.com
In the title compound, [Cu(C11H11NO3)(C11H16N4)]·H2O, the CuII atom is five-coordinate in a distorted square-pyramidal geometry. The basal positions are occupied by three donor atoms from the tridentate Schiff base ligand and by one N atom from a bis(3,5-dimethylprazol-l-yl)methane ligand. The apical position is occupied by the N atom of the other ligand of this type. There are only van der Waals contacts in the crystal structure.
Related literature
For background to transition metal complexes with Schiff base ligands, see: Casella & Guillotti (1983); Ganguly et al. (2008); Vigato & Tamburini (2004). For structural studies of Schiff base complexes derived from 2-hydroxyacetophenone and animo acids, see: Baul et al. (2007); Parekh et al. (2006); Usman et al. (2003). For related literature, see: Plesch et al. (1997).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536808037264/bq2096sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808037264/bq2096Isup2.hkl
The title compound was synthesized as described in the literature (Plesch et al., 1997). To L-valine (1.00 mmol) and potassium hydroxide (1.00 mmol) in 10 ml of methanol was added 2-Hydroxyacetophenone (1.00 mmol in 10 ml of methanol) dropwise. The yellow solution was stirred for 2.0 h at 333 K. The resultant mixture was added dropwise to copper (II) acetate monohydrate (1.00 mmol) and 1,1-bis(3,5-dimethylprazol-l-yl)methane (1.00 mmol) in an aqueous methanolic solution (20 ml, 1:1 v/v), and heated with stirring for 2.0 h at 333 K. The dark blue solution was filtered and left for several days, dark blue crystals had formed that were filtered off, washed with water, and dried under vacuum.
In (I), All H atoms were positioned geometrically and refined as riding atoms, with C—H = 0.93 (CH) or 0.97 Å (CH2) and Uiso(H) = 1.2Ueq(C), with C—H = 0.96 Å (CH3) and Uiso(H) = 1.5Ueq(C). The oxygen (O4) of the water molecule is extremely disorder. So, no H-atom could be attached.
Data collection: SMART (Bruker, 2000); cell
SMART (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The structure of the title compound, showing 30% probability displacement ellipsoids and the atom-numbering scheme. |
[Cu(C11H11NO3)(C11H16N4)]·H2O | F(000) = 1028 |
Mr = 491.04 | Dx = 1.358 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 3344 reflections |
a = 13.365 (3) Å | θ = 2.6–23.9° |
b = 7.8602 (15) Å | µ = 0.95 mm−1 |
c = 23.404 (4) Å | T = 293 K |
β = 102.315 (2)° | Block, dark blue |
V = 2402.1 (8) Å3 | 0.36 × 0.25 × 0.20 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 5500 independent reflections |
Radiation source: fine-focus sealed tube | 3724 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.054 |
ϕ and ω scans | θmax = 27.6°, θmin = 2.1° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −12→17 |
Tmin = 0.727, Tmax = 0.833 | k = −10→10 |
14432 measured reflections | l = −30→27 |
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)] = 0.052 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.150 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0715P)2 + 0.4661P] where P = (Fo2 + 2Fc2)/3 |
5500 reflections | (Δ/σ)max = 0.001 |
296 parameters | Δρmax = 0.79 e Å−3 |
0 restraints | Δρmin = −0.53 e Å−3 |
[Cu(C11H11NO3)(C11H16N4)]·H2O | V = 2402.1 (8) Å3 |
Mr = 491.04 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 13.365 (3) Å | µ = 0.95 mm−1 |
b = 7.8602 (15) Å | T = 293 K |
c = 23.404 (4) Å | 0.36 × 0.25 × 0.20 mm |
β = 102.315 (2)° |
Bruker SMART CCD area-detector diffractometer | 5500 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3724 reflections with I > 2σ(I) |
Tmin = 0.727, Tmax = 0.833 | Rint = 0.054 |
14432 measured reflections |
R[F2 > 2σ(F2)] = 0.052 | 0 restraints |
wR(F2) = 0.150 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.79 e Å−3 |
5500 reflections | Δρmin = −0.53 e Å−3 |
296 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.8201 (2) | 0.6577 (4) | 0.77226 (13) | 0.0495 (8) | |
C2 | 0.8236 (3) | 0.6612 (6) | 0.83301 (14) | 0.0657 (10) | |
H2 | 0.7623 | 0.6597 | 0.8457 | 0.079* | |
C3 | 0.9132 (3) | 0.6666 (6) | 0.87380 (16) | 0.0758 (12) | |
H3 | 0.9122 | 0.6682 | 0.9134 | 0.091* | |
C4 | 1.0060 (3) | 0.6697 (6) | 0.85614 (16) | 0.0777 (12) | |
H4 | 1.0675 | 0.6774 | 0.8835 | 0.093* | |
C5 | 1.0049 (3) | 0.6611 (5) | 0.79729 (16) | 0.0657 (10) | |
H5 | 1.0673 | 0.6589 | 0.7858 | 0.079* | |
C6 | 0.9140 (2) | 0.6554 (4) | 0.75344 (14) | 0.0473 (8) | |
C7 | 0.9202 (2) | 0.6387 (4) | 0.69200 (14) | 0.0460 (7) | |
C8 | 0.8453 (2) | 0.5740 (4) | 0.59087 (13) | 0.0477 (8) | |
H8 | 0.9104 | 0.5182 | 0.5896 | 0.057* | |
C9 | 0.7567 (3) | 0.4588 (5) | 0.56306 (14) | 0.0519 (8) | |
C10 | 1.0249 (2) | 0.6546 (6) | 0.67706 (17) | 0.0690 (11) | |
H10A | 1.0172 | 0.6609 | 0.6354 | 0.104* | |
H10B | 1.0657 | 0.5571 | 0.6917 | 0.104* | |
H10C | 1.0581 | 0.7558 | 0.6947 | 0.104* | |
C11 | 0.8367 (3) | 0.7413 (5) | 0.55651 (16) | 0.0692 (11) | |
H11A | 0.8971 | 0.8084 | 0.5701 | 0.104* | |
H11B | 0.7777 | 0.8032 | 0.5622 | 0.104* | |
H11C | 0.8300 | 0.7171 | 0.5157 | 0.104* | |
C12 | 0.6251 (2) | 0.9931 (4) | 0.62768 (14) | 0.0477 (7) | |
C13 | 0.5374 (3) | 1.0828 (4) | 0.60353 (17) | 0.0594 (9) | |
H13 | 0.5290 | 1.2003 | 0.6039 | 0.071* | |
C14 | 0.4655 (3) | 0.9659 (4) | 0.57912 (15) | 0.0510 (8) | |
C15 | 0.3571 (3) | 0.9869 (6) | 0.5464 (2) | 0.0819 (13) | |
H15A | 0.3469 | 0.9248 | 0.5103 | 0.123* | |
H15B | 0.3432 | 1.1053 | 0.5383 | 0.123* | |
H15C | 0.3115 | 0.9440 | 0.5697 | 0.123* | |
C16 | 0.7269 (3) | 1.0596 (5) | 0.66044 (19) | 0.0730 (12) | |
H16A | 0.7522 | 0.9881 | 0.6936 | 0.110* | |
H16B | 0.7186 | 1.1735 | 0.6735 | 0.110* | |
H16C | 0.7747 | 1.0595 | 0.6351 | 0.110* | |
C17 | 0.4717 (2) | 0.6429 (4) | 0.57657 (12) | 0.0411 (7) | |
H17A | 0.5156 | 0.5804 | 0.5559 | 0.049* | |
H17B | 0.4041 | 0.6494 | 0.5513 | 0.049* | |
C18 | 0.3806 (2) | 0.5024 (5) | 0.64872 (15) | 0.0504 (8) | |
C19 | 0.4159 (3) | 0.4218 (4) | 0.70075 (16) | 0.0586 (9) | |
H19 | 0.3761 | 0.3709 | 0.7241 | 0.070* | |
C20 | 0.5217 (3) | 0.4297 (4) | 0.71236 (14) | 0.0491 (8) | |
C21 | 0.5955 (3) | 0.3618 (6) | 0.76487 (17) | 0.0787 (12) | |
H21A | 0.6578 | 0.3282 | 0.7538 | 0.118* | |
H21B | 0.5657 | 0.2651 | 0.7801 | 0.118* | |
H21C | 0.6101 | 0.4486 | 0.7943 | 0.118* | |
C22 | 0.2745 (3) | 0.5421 (6) | 0.61745 (19) | 0.0811 (13) | |
H22A | 0.2645 | 0.5038 | 0.5777 | 0.122* | |
H22B | 0.2635 | 0.6627 | 0.6180 | 0.122* | |
H22C | 0.2268 | 0.4854 | 0.6364 | 0.122* | |
Cu1 | 0.69565 (3) | 0.58580 (5) | 0.659531 (15) | 0.03989 (15) | |
N1 | 0.83952 (18) | 0.6059 (3) | 0.65209 (11) | 0.0421 (6) | |
N2 | 0.61092 (17) | 0.8286 (3) | 0.61916 (11) | 0.0432 (6) | |
N3 | 0.51185 (17) | 0.8133 (3) | 0.58899 (10) | 0.0402 (6) | |
N4 | 0.55252 (18) | 0.5077 (3) | 0.66850 (11) | 0.0428 (6) | |
N5 | 0.46534 (18) | 0.5521 (3) | 0.62967 (11) | 0.0411 (6) | |
O1 | 0.72874 (16) | 0.6610 (3) | 0.73752 (9) | 0.0561 (6) | |
O2 | 0.67815 (16) | 0.4594 (3) | 0.58584 (9) | 0.0503 (6) | |
O3 | 0.7635 (2) | 0.3745 (4) | 0.51962 (12) | 0.0863 (10) | |
O4 | 0.9427 (3) | 0.3264 (13) | 0.48232 (19) | 0.269 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0451 (18) | 0.054 (2) | 0.0463 (18) | 0.0114 (15) | 0.0040 (15) | −0.0053 (15) |
C2 | 0.057 (2) | 0.096 (3) | 0.0428 (19) | 0.016 (2) | 0.0085 (17) | −0.0079 (18) |
C3 | 0.077 (3) | 0.102 (3) | 0.043 (2) | 0.019 (2) | 0.003 (2) | −0.007 (2) |
C4 | 0.059 (3) | 0.110 (4) | 0.053 (2) | 0.023 (2) | −0.0117 (19) | −0.013 (2) |
C5 | 0.0406 (19) | 0.087 (3) | 0.064 (2) | 0.0130 (19) | −0.0011 (17) | −0.010 (2) |
C6 | 0.0365 (17) | 0.0529 (19) | 0.0495 (18) | 0.0100 (14) | 0.0022 (14) | −0.0056 (15) |
C7 | 0.0319 (16) | 0.0505 (19) | 0.0542 (19) | 0.0051 (13) | 0.0063 (14) | 0.0006 (15) |
C8 | 0.0319 (16) | 0.071 (2) | 0.0423 (17) | 0.0032 (15) | 0.0116 (13) | −0.0015 (15) |
C9 | 0.0422 (18) | 0.072 (2) | 0.0412 (17) | 0.0053 (16) | 0.0081 (14) | −0.0056 (15) |
C10 | 0.0305 (18) | 0.105 (3) | 0.071 (2) | −0.0030 (19) | 0.0106 (17) | −0.013 (2) |
C11 | 0.058 (2) | 0.093 (3) | 0.061 (2) | −0.001 (2) | 0.0220 (18) | 0.019 (2) |
C12 | 0.0421 (18) | 0.0425 (19) | 0.058 (2) | −0.0077 (14) | 0.0094 (15) | 0.0009 (15) |
C13 | 0.057 (2) | 0.0430 (19) | 0.072 (2) | 0.0043 (16) | 0.0015 (19) | −0.0004 (16) |
C14 | 0.0444 (18) | 0.052 (2) | 0.055 (2) | 0.0094 (15) | 0.0066 (15) | 0.0041 (15) |
C15 | 0.056 (2) | 0.079 (3) | 0.096 (3) | 0.021 (2) | −0.015 (2) | −0.001 (3) |
C16 | 0.051 (2) | 0.064 (3) | 0.096 (3) | −0.0145 (18) | −0.002 (2) | −0.009 (2) |
C17 | 0.0341 (16) | 0.0482 (18) | 0.0402 (16) | −0.0048 (13) | 0.0059 (13) | −0.0052 (13) |
C18 | 0.0394 (17) | 0.059 (2) | 0.057 (2) | −0.0143 (16) | 0.0188 (15) | −0.0086 (16) |
C19 | 0.054 (2) | 0.068 (2) | 0.062 (2) | −0.0176 (17) | 0.0295 (18) | −0.0038 (18) |
C20 | 0.058 (2) | 0.0458 (19) | 0.0480 (18) | −0.0049 (15) | 0.0206 (16) | 0.0004 (14) |
C21 | 0.088 (3) | 0.084 (3) | 0.063 (2) | −0.001 (2) | 0.015 (2) | 0.027 (2) |
C22 | 0.037 (2) | 0.121 (4) | 0.087 (3) | −0.013 (2) | 0.019 (2) | 0.006 (3) |
Cu1 | 0.0293 (2) | 0.0490 (3) | 0.0421 (2) | 0.00231 (15) | 0.00949 (15) | −0.00283 (16) |
N1 | 0.0319 (13) | 0.0521 (16) | 0.0421 (14) | 0.0036 (11) | 0.0074 (11) | 0.0015 (11) |
N2 | 0.0263 (12) | 0.0471 (16) | 0.0528 (15) | −0.0040 (11) | 0.0008 (11) | 0.0023 (12) |
N3 | 0.0311 (13) | 0.0443 (15) | 0.0441 (13) | 0.0003 (11) | 0.0056 (11) | 0.0014 (11) |
N4 | 0.0390 (14) | 0.0445 (15) | 0.0462 (14) | −0.0040 (12) | 0.0119 (12) | 0.0031 (12) |
N5 | 0.0309 (13) | 0.0526 (16) | 0.0414 (14) | −0.0067 (11) | 0.0111 (11) | −0.0009 (11) |
O1 | 0.0336 (12) | 0.0861 (17) | 0.0478 (13) | 0.0080 (11) | 0.0069 (10) | −0.0120 (12) |
O2 | 0.0379 (12) | 0.0612 (15) | 0.0548 (13) | −0.0025 (10) | 0.0167 (10) | −0.0111 (10) |
O3 | 0.0584 (17) | 0.142 (3) | 0.0650 (17) | −0.0115 (16) | 0.0265 (14) | −0.0473 (17) |
O4 | 0.082 (3) | 0.624 (14) | 0.103 (3) | 0.110 (5) | 0.026 (2) | −0.007 (5) |
C1—O1 | 1.314 (4) | C14—C15 | 1.497 (4) |
C1—C2 | 1.413 (4) | C15—H15A | 0.9600 |
C1—C6 | 1.417 (4) | C15—H15B | 0.9600 |
C2—C3 | 1.364 (5) | C15—H15C | 0.9600 |
C2—H2 | 0.9300 | C16—H16A | 0.9600 |
C3—C4 | 1.388 (6) | C16—H16B | 0.9600 |
C3—H3 | 0.9300 | C16—H16C | 0.9600 |
C4—C5 | 1.376 (5) | C17—N3 | 1.449 (4) |
C4—H4 | 0.9300 | C17—N5 | 1.451 (4) |
C5—C6 | 1.414 (4) | C17—H17A | 0.9700 |
C5—H5 | 0.9300 | C17—H17B | 0.9700 |
C6—C7 | 1.464 (4) | C18—N5 | 1.361 (4) |
C7—N1 | 1.293 (4) | C18—C19 | 1.364 (5) |
C7—C10 | 1.518 (4) | C18—C22 | 1.483 (5) |
C8—N1 | 1.473 (4) | C19—C20 | 1.384 (5) |
C8—C9 | 1.522 (5) | C19—H19 | 0.9300 |
C8—C11 | 1.533 (5) | C20—N4 | 1.334 (4) |
C8—H8 | 0.9800 | C20—C21 | 1.500 (5) |
C9—O3 | 1.233 (4) | C21—H21A | 0.9600 |
C9—O2 | 1.275 (4) | C21—H21B | 0.9600 |
C10—H10A | 0.9600 | C21—H21C | 0.9600 |
C10—H10B | 0.9600 | C22—H22A | 0.9600 |
C10—H10C | 0.9600 | C22—H22B | 0.9600 |
C11—H11A | 0.9600 | C22—H22C | 0.9600 |
C11—H11B | 0.9600 | Cu1—O1 | 1.879 (2) |
C11—H11C | 0.9600 | Cu1—O2 | 1.961 (2) |
C12—N2 | 1.316 (4) | Cu1—N1 | 1.974 (2) |
C12—C13 | 1.381 (5) | Cu1—N4 | 2.062 (2) |
C12—C16 | 1.505 (5) | Cu1—N2 | 2.315 (3) |
C13—C14 | 1.364 (5) | N2—N3 | 1.367 (3) |
C13—H13 | 0.9300 | N4—N5 | 1.362 (3) |
C14—N3 | 1.348 (4) | ||
O1—C1—C2 | 116.7 (3) | H16A—C16—H16B | 109.5 |
O1—C1—C6 | 125.1 (3) | C12—C16—H16C | 109.5 |
C2—C1—C6 | 118.1 (3) | H16A—C16—H16C | 109.5 |
C3—C2—C1 | 122.8 (4) | H16B—C16—H16C | 109.5 |
C3—C2—H2 | 118.6 | N3—C17—N5 | 111.7 (2) |
C1—C2—H2 | 118.6 | N3—C17—H17A | 109.3 |
C2—C3—C4 | 119.9 (3) | N5—C17—H17A | 109.3 |
C2—C3—H3 | 120.0 | N3—C17—H17B | 109.3 |
C4—C3—H3 | 120.0 | N5—C17—H17B | 109.3 |
C5—C4—C3 | 118.6 (3) | H17A—C17—H17B | 107.9 |
C5—C4—H4 | 120.7 | N5—C18—C19 | 105.8 (3) |
C3—C4—H4 | 120.7 | N5—C18—C22 | 123.6 (3) |
C4—C5—C6 | 123.5 (4) | C19—C18—C22 | 130.6 (3) |
C4—C5—H5 | 118.3 | C18—C19—C20 | 107.4 (3) |
C6—C5—H5 | 118.3 | C18—C19—H19 | 126.3 |
C5—C6—C1 | 117.1 (3) | C20—C19—H19 | 126.3 |
C5—C6—C7 | 119.7 (3) | N4—C20—C19 | 109.9 (3) |
C1—C6—C7 | 123.1 (3) | N4—C20—C21 | 122.5 (3) |
N1—C7—C6 | 120.9 (3) | C19—C20—C21 | 127.6 (3) |
N1—C7—C10 | 121.2 (3) | C20—C21—H21A | 109.5 |
C6—C7—C10 | 117.8 (3) | C20—C21—H21B | 109.5 |
N1—C8—C9 | 108.6 (2) | H21A—C21—H21B | 109.5 |
N1—C8—C11 | 110.5 (3) | C20—C21—H21C | 109.5 |
C9—C8—C11 | 108.8 (3) | H21A—C21—H21C | 109.5 |
N1—C8—H8 | 109.6 | H21B—C21—H21C | 109.5 |
C9—C8—H8 | 109.6 | C18—C22—H22A | 109.5 |
C11—C8—H8 | 109.6 | C18—C22—H22B | 109.5 |
O3—C9—O2 | 124.0 (3) | H22A—C22—H22B | 109.5 |
O3—C9—C8 | 119.0 (3) | C18—C22—H22C | 109.5 |
O2—C9—C8 | 117.0 (3) | H22A—C22—H22C | 109.5 |
C7—C10—H10A | 109.5 | H22B—C22—H22C | 109.5 |
C7—C10—H10B | 109.5 | O1—Cu1—O2 | 166.62 (10) |
H10A—C10—H10B | 109.5 | O1—Cu1—N1 | 91.65 (10) |
C7—C10—H10C | 109.5 | O2—Cu1—N1 | 84.17 (9) |
H10A—C10—H10C | 109.5 | O1—Cu1—N4 | 91.49 (10) |
H10B—C10—H10C | 109.5 | O2—Cu1—N4 | 89.98 (9) |
C8—C11—H11A | 109.5 | N1—Cu1—N4 | 167.22 (10) |
C8—C11—H11B | 109.5 | O1—Cu1—N2 | 97.50 (10) |
H11A—C11—H11B | 109.5 | O2—Cu1—N2 | 95.87 (9) |
C8—C11—H11C | 109.5 | N1—Cu1—N2 | 107.40 (9) |
H11A—C11—H11C | 109.5 | N4—Cu1—N2 | 84.45 (9) |
H11B—C11—H11C | 109.5 | C7—N1—C8 | 121.9 (3) |
N2—C12—C13 | 111.0 (3) | C7—N1—Cu1 | 129.1 (2) |
N2—C12—C16 | 120.2 (3) | C8—N1—Cu1 | 109.07 (18) |
C13—C12—C16 | 128.8 (3) | C12—N2—N3 | 104.9 (2) |
C14—C13—C12 | 106.7 (3) | C12—N2—Cu1 | 134.91 (19) |
C14—C13—H13 | 126.6 | N3—N2—Cu1 | 118.30 (18) |
C12—C13—H13 | 126.6 | C14—N3—N2 | 111.7 (3) |
N3—C14—C13 | 105.7 (3) | C14—N3—C17 | 130.7 (3) |
N3—C14—C15 | 123.0 (3) | N2—N3—C17 | 117.5 (2) |
C13—C14—C15 | 131.2 (3) | C20—N4—N5 | 105.7 (2) |
C14—C15—H15A | 109.5 | C20—N4—Cu1 | 131.3 (2) |
C14—C15—H15B | 109.5 | N5—N4—Cu1 | 122.41 (18) |
H15A—C15—H15B | 109.5 | C18—N5—N4 | 111.2 (2) |
C14—C15—H15C | 109.5 | C18—N5—C17 | 128.8 (3) |
H15A—C15—H15C | 109.5 | N4—N5—C17 | 120.0 (2) |
H15B—C15—H15C | 109.5 | C1—O1—Cu1 | 126.14 (19) |
C12—C16—H16A | 109.5 | C9—O2—Cu1 | 114.6 (2) |
C12—C16—H16B | 109.5 |
Experimental details
Crystal data | |
Chemical formula | [Cu(C11H11NO3)(C11H16N4)]·H2O |
Mr | 491.04 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 13.365 (3), 7.8602 (15), 23.404 (4) |
β (°) | 102.315 (2) |
V (Å3) | 2402.1 (8) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.95 |
Crystal size (mm) | 0.36 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.727, 0.833 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14432, 5500, 3724 |
Rint | 0.054 |
(sin θ/λ)max (Å−1) | 0.653 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.052, 0.150, 1.02 |
No. of reflections | 5500 |
No. of parameters | 296 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.79, −0.53 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Cu1—O1 | 1.879 (2) | Cu1—N4 | 2.062 (2) |
Cu1—O2 | 1.961 (2) | Cu1—N2 | 2.315 (3) |
Cu1—N1 | 1.974 (2) |
Acknowledgements
This research was supported by the National Sciences Foundation of China (grant Nos. 20676057 and 20877036).
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
In the past decades, significant progress has been achieved in understanding the chemistry of transition metal complexes with Schiff base ligands composed of salicylaldehyde, 2-formylpyridine or their analogues, and α-amino acids (Vigato & Tamburini, 2004; Ganguly et al., 2008; Casella & Guillotti, 1983). A few stuctural studies have been performed on Schiff base complexes derived from 2-Hydroxyacetophenone and animo acids (Usman et al., 2003; Baul et al., 2007; Parekh et al., 2006). We report here the crystal structure of the title CuII complex, (I).
The structure consists of discrete monomeric square-pyramidal CuII complex (Fig. 1 and Table 1). The basal positions are occupied by three donor atoms from the tridentate Schiff base ligand, which furnishes an ONO donor set, with the fourth position occupied by one N atom from the 1,1-bis(3,5-dimethylprazol-l-yl)methane ligand. The apical position is occupied by the other N atom of this ligand.
The two nitrogen heterocycles are planar and lie at angles of 95.5° and 30.9° to the plane of the C1—C6 ring. The two nitrogen heterocycles form a dihedral angle of 66.2° with each other.
The van der Waals contacts are major factors in the crystal packing. The H atoms of water could not be fixed because of the high disorder of O4. So, no comment can be given about the probable O—H···O type hydrogen bonds which should be formed through the solvent water molecule with neighboring carboxylate oxygen O3.