metal-organic compounds
Bis{1-[4-(benzyloxy)phenyl]-4,4,4-trifluorobutane-1,3-dionato(1−)}dipyridinecobalt(II)
aCollege of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, People's Republic of China
*Correspondence e-mail: fanlinghbnu@163.com
In the title compound, [Co(C17H12F3O3)2(C5H5N)2], the CoII ion is situated on a twofold rotation axis, coordinated by four O atoms from two 1-[4-(benzyloxy)phenyl]-4,4,4-trifluorobutane-1,3-dionate(1−) (L) ligands and two N atoms from two pyridine ligands in a distorted octahedral geometry. The two pyridine rings form a dihedral angle of 84.63 (7)°. The two benzene rings in L are twisted at 58.83 (5)°. Weak intermolecular C—H⋯F hydrogen bonds consolidate the crystal packing.
Related literature
For the crystal structures of other complexes of transition metal ions with β-diketonate ligands, see: Melnik et al. (1999); Soldatov et al. (2003); Youngme et al. (2007); Feng (2002).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 1999); 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/S1600536811043157/cv5178sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811043157/cv5178Isup2.hkl
To a hot ethanol solution (25 ml) of the ligand (644 mg, 2.0 mmol) and pyridine (316 mg, 4.0 mmol) was added slowly to 20 ml water solution of cobalt(II) acetate tetrahydrate (250 mg, 1.0 mmol). The mixture was stirred for another 6 h. After filtration, the red solution was allowed to stand at room temperature. Red block-shaped crystals suitable for X-ray analysis were obtained after several days.
C-bound H atoms were positioned geometrically (C—H 0.93-0.97 Å), and refined as riding, with Uiso(H) = 1.2Ueq(C).
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 1999); data reduction: SAINT (Bruker, 1999); 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 title complex with the atom-numbering scheme [symmetry code: (a) -x + 1, y, -z + 3/2]. Displacement ellipsoids are drawn at the 30% probability level. |
[Co(C17H12F3O3)2(C5H5N)2] | F(000) = 1764 |
Mr = 859.66 | Dx = 1.460 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C2yc | Cell parameters from 3520 reflections |
a = 16.5435 (11) Å | θ = 2.3–21.5° |
b = 10.7359 (7) Å | µ = 0.52 mm−1 |
c = 23.0706 (14) Å | T = 293 K |
β = 107.333 (1)° | Plate, red |
V = 3911.5 (4) Å3 | 0.20 × 0.20 × 0.06 mm |
Z = 4 |
Bruker SMART APEX CCD area-detector diffractometer | 4453 independent reflections |
Radiation source: fine-focus sealed tube | 2849 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.051 |
ϕ and ω scans | θmax = 27.5°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −21→21 |
Tmin = 0.903, Tmax = 0.970 | k = −13→13 |
21577 measured reflections | l = −29→28 |
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)] = 0.051 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.151 | H-atom parameters constrained |
S = 1.09 | w = 1/[σ2(Fo2) + (0.0783P)2] where P = (Fo2 + 2Fc2)/3 |
4453 reflections | (Δ/σ)max < 0.001 |
267 parameters | Δρmax = 0.46 e Å−3 |
0 restraints | Δρmin = −0.40 e Å−3 |
[Co(C17H12F3O3)2(C5H5N)2] | V = 3911.5 (4) Å3 |
Mr = 859.66 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 16.5435 (11) Å | µ = 0.52 mm−1 |
b = 10.7359 (7) Å | T = 293 K |
c = 23.0706 (14) Å | 0.20 × 0.20 × 0.06 mm |
β = 107.333 (1)° |
Bruker SMART APEX CCD area-detector diffractometer | 4453 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2849 reflections with I > 2σ(I) |
Tmin = 0.903, Tmax = 0.970 | Rint = 0.051 |
21577 measured reflections |
R[F2 > 2σ(F2)] = 0.051 | 0 restraints |
wR(F2) = 0.151 | H-atom parameters constrained |
S = 1.09 | Δρmax = 0.46 e Å−3 |
4453 reflections | Δρmin = −0.40 e Å−3 |
267 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 | ||
Co1 | 0.5000 | 0.98662 (4) | 0.7500 | 0.04247 (19) | |
C1 | 0.2027 (2) | 1.0025 (3) | 1.12451 (16) | 0.0696 (9) | |
H1 | 0.2575 | 1.0324 | 1.1408 | 0.083* | |
C2 | 0.1457 (3) | 1.0136 (3) | 1.15707 (18) | 0.0827 (11) | |
H2 | 0.1624 | 1.0518 | 1.1950 | 0.099* | |
C3 | 0.0658 (2) | 0.9698 (3) | 1.1347 (2) | 0.0795 (11) | |
H3 | 0.0276 | 0.9773 | 1.1570 | 0.095* | |
C4 | 0.0423 (2) | 0.9151 (4) | 1.0796 (2) | 0.0914 (12) | |
H4 | −0.0126 | 0.8849 | 1.0639 | 0.110* | |
C5 | 0.0993 (2) | 0.9034 (3) | 1.04600 (15) | 0.0755 (10) | |
H5 | 0.0824 | 0.8650 | 1.0082 | 0.091* | |
C6 | 0.17965 (17) | 0.9480 (3) | 1.06829 (13) | 0.0492 (6) | |
C7 | 0.24232 (19) | 0.9304 (3) | 1.03333 (14) | 0.0583 (7) | |
H7A | 0.2892 | 0.8795 | 1.0566 | 0.070* | |
H7B | 0.2154 | 0.8880 | 0.9953 | 0.070* | |
C8 | 0.32766 (16) | 1.0515 (3) | 0.98741 (12) | 0.0477 (6) | |
C9 | 0.35554 (17) | 1.1677 (3) | 0.97581 (13) | 0.0556 (7) | |
H9 | 0.3397 | 1.2382 | 0.9932 | 0.067* | |
C10 | 0.40662 (16) | 1.1793 (3) | 0.93861 (12) | 0.0506 (7) | |
H10 | 0.4253 | 1.2579 | 0.9314 | 0.061* | |
C11 | 0.43073 (14) | 1.0755 (2) | 0.91162 (10) | 0.0404 (6) | |
C12 | 0.40418 (16) | 0.9594 (3) | 0.92536 (12) | 0.0485 (6) | |
H12 | 0.4208 | 0.8885 | 0.9087 | 0.058* | |
C13 | 0.35399 (17) | 0.9467 (3) | 0.96295 (12) | 0.0505 (7) | |
H13 | 0.3377 | 0.8678 | 0.9720 | 0.061* | |
C14 | 0.47827 (15) | 1.0839 (2) | 0.86654 (11) | 0.0409 (6) | |
C15 | 0.52962 (16) | 1.1877 (3) | 0.86562 (12) | 0.0500 (7) | |
H15 | 0.5310 | 1.2517 | 0.8930 | 0.060* | |
C16 | 0.57835 (15) | 1.2005 (2) | 0.82633 (11) | 0.0447 (6) | |
C17 | 0.63094 (19) | 1.3182 (3) | 0.83179 (14) | 0.0593 (8) | |
C18 | 0.35055 (18) | 0.8074 (3) | 0.74601 (13) | 0.0572 (7) | |
H18 | 0.3512 | 0.8481 | 0.7817 | 0.069* | |
C19 | 0.29215 (18) | 0.7144 (3) | 0.72501 (14) | 0.0635 (8) | |
H19 | 0.2546 | 0.6929 | 0.7464 | 0.076* | |
C20 | 0.28972 (18) | 0.6538 (3) | 0.67243 (14) | 0.0606 (8) | |
H20 | 0.2504 | 0.5911 | 0.6571 | 0.073* | |
C21 | 0.34664 (19) | 0.6878 (3) | 0.64308 (15) | 0.0643 (8) | |
H21 | 0.3471 | 0.6476 | 0.6075 | 0.077* | |
C22 | 0.40313 (18) | 0.7815 (3) | 0.66633 (14) | 0.0594 (8) | |
H22 | 0.4410 | 0.8039 | 0.6454 | 0.071* | |
F1 | 0.63339 (13) | 1.38935 (18) | 0.87896 (9) | 0.0861 (6) | |
F2 | 0.60161 (18) | 1.3903 (2) | 0.78411 (10) | 0.1257 (10) | |
F3 | 0.71007 (13) | 1.2954 (2) | 0.83588 (14) | 0.1230 (10) | |
N1 | 0.40663 (13) | 0.8423 (2) | 0.71752 (9) | 0.0465 (5) | |
O1 | 0.27283 (12) | 1.04931 (18) | 1.02143 (9) | 0.0609 (5) | |
O2 | 0.47050 (12) | 0.99242 (15) | 0.83042 (9) | 0.0498 (5) | |
O3 | 0.58708 (11) | 1.12821 (17) | 0.78575 (8) | 0.0514 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Co1 | 0.0523 (3) | 0.0441 (3) | 0.0385 (3) | 0.000 | 0.0251 (2) | 0.000 |
C1 | 0.070 (2) | 0.086 (3) | 0.062 (2) | −0.0213 (16) | 0.0346 (17) | −0.0153 (17) |
C2 | 0.102 (3) | 0.093 (3) | 0.071 (2) | −0.013 (2) | 0.054 (2) | −0.0122 (19) |
C3 | 0.083 (2) | 0.086 (3) | 0.094 (3) | 0.0053 (19) | 0.064 (2) | 0.012 (2) |
C4 | 0.0536 (19) | 0.123 (3) | 0.105 (3) | −0.015 (2) | 0.0365 (19) | −0.001 (3) |
C5 | 0.066 (2) | 0.099 (3) | 0.064 (2) | −0.0083 (18) | 0.0222 (16) | −0.0125 (19) |
C6 | 0.0547 (15) | 0.0519 (16) | 0.0497 (16) | 0.0011 (13) | 0.0290 (13) | 0.0063 (13) |
C7 | 0.0691 (18) | 0.0594 (19) | 0.0571 (18) | 0.0001 (15) | 0.0353 (15) | 0.0042 (15) |
C8 | 0.0497 (14) | 0.0545 (17) | 0.0469 (15) | −0.0009 (12) | 0.0265 (12) | −0.0009 (13) |
C9 | 0.0690 (17) | 0.0505 (17) | 0.0608 (18) | −0.0067 (14) | 0.0400 (14) | −0.0142 (14) |
C10 | 0.0596 (15) | 0.0477 (16) | 0.0550 (17) | −0.0094 (12) | 0.0331 (13) | −0.0067 (13) |
C11 | 0.0429 (13) | 0.0462 (15) | 0.0358 (13) | 0.0003 (11) | 0.0175 (11) | −0.0012 (11) |
C12 | 0.0582 (15) | 0.0455 (16) | 0.0507 (16) | 0.0075 (12) | 0.0300 (13) | 0.0005 (12) |
C13 | 0.0642 (17) | 0.0445 (16) | 0.0553 (17) | 0.0008 (13) | 0.0369 (14) | 0.0050 (13) |
C14 | 0.0461 (13) | 0.0462 (16) | 0.0338 (13) | 0.0015 (11) | 0.0173 (11) | −0.0009 (11) |
C15 | 0.0575 (15) | 0.0524 (17) | 0.0477 (15) | −0.0071 (13) | 0.0275 (13) | −0.0100 (13) |
C16 | 0.0461 (13) | 0.0498 (16) | 0.0423 (15) | −0.0029 (11) | 0.0194 (11) | −0.0005 (12) |
C17 | 0.0678 (18) | 0.065 (2) | 0.0558 (19) | −0.0145 (15) | 0.0350 (15) | −0.0097 (16) |
C18 | 0.0678 (18) | 0.0599 (19) | 0.0512 (16) | −0.0076 (14) | 0.0288 (14) | −0.0048 (14) |
C19 | 0.0602 (17) | 0.069 (2) | 0.070 (2) | −0.0099 (15) | 0.0314 (15) | 0.0027 (17) |
C20 | 0.0567 (17) | 0.0530 (18) | 0.070 (2) | −0.0054 (13) | 0.0151 (15) | −0.0021 (15) |
C21 | 0.0685 (18) | 0.063 (2) | 0.0646 (19) | −0.0064 (15) | 0.0252 (16) | −0.0197 (16) |
C22 | 0.0652 (17) | 0.0582 (19) | 0.0625 (19) | −0.0050 (14) | 0.0310 (15) | −0.0139 (15) |
F1 | 0.1119 (15) | 0.0785 (13) | 0.0865 (13) | −0.0420 (11) | 0.0579 (11) | −0.0326 (11) |
F2 | 0.188 (3) | 0.0923 (17) | 0.0835 (15) | −0.0641 (16) | 0.0195 (16) | 0.0237 (13) |
F3 | 0.0777 (13) | 0.1051 (18) | 0.212 (3) | −0.0376 (12) | 0.0821 (16) | −0.0510 (18) |
N1 | 0.0490 (11) | 0.0471 (13) | 0.0478 (13) | 0.0008 (10) | 0.0214 (10) | 0.0004 (10) |
O1 | 0.0777 (13) | 0.0566 (12) | 0.0695 (14) | −0.0051 (10) | 0.0541 (11) | −0.0034 (10) |
O2 | 0.0649 (11) | 0.0468 (11) | 0.0468 (11) | −0.0052 (8) | 0.0305 (9) | −0.0048 (8) |
O3 | 0.0592 (11) | 0.0514 (11) | 0.0547 (11) | −0.0069 (8) | 0.0339 (9) | −0.0066 (9) |
Co1—O2 | 2.0553 (18) | C10—H10 | 0.9300 |
Co1—O2i | 2.0553 (18) | C11—C12 | 1.389 (4) |
Co1—O3 | 2.0877 (18) | C11—C14 | 1.482 (3) |
Co1—O3i | 2.0877 (18) | C12—C13 | 1.375 (3) |
Co1—N1i | 2.158 (2) | C12—H12 | 0.9300 |
Co1—N1 | 2.158 (2) | C13—H13 | 0.9300 |
C1—C6 | 1.369 (4) | C14—O2 | 1.269 (3) |
C1—C2 | 1.374 (4) | C14—C15 | 1.405 (3) |
C1—H1 | 0.9300 | C15—C16 | 1.388 (3) |
C2—C3 | 1.353 (5) | C15—H15 | 0.9300 |
C2—H2 | 0.9300 | C16—O3 | 1.257 (3) |
C3—C4 | 1.347 (5) | C16—C17 | 1.518 (4) |
C3—H3 | 0.9300 | C17—F3 | 1.307 (3) |
C4—C5 | 1.395 (4) | C17—F2 | 1.314 (4) |
C4—H4 | 0.9300 | C17—F1 | 1.320 (3) |
C5—C6 | 1.361 (4) | C18—N1 | 1.341 (3) |
C5—H5 | 0.9300 | C18—C19 | 1.373 (4) |
C6—C7 | 1.503 (4) | C18—H18 | 0.9300 |
C7—O1 | 1.429 (3) | C19—C20 | 1.367 (4) |
C7—H7A | 0.9700 | C19—H19 | 0.9300 |
C7—H7B | 0.9700 | C20—C21 | 1.363 (4) |
C8—O1 | 1.365 (3) | C20—H20 | 0.9300 |
C8—C9 | 1.384 (4) | C21—C22 | 1.369 (4) |
C8—C13 | 1.386 (4) | C21—H21 | 0.9300 |
C9—C10 | 1.378 (3) | C22—N1 | 1.336 (3) |
C9—H9 | 0.9300 | C22—H22 | 0.9300 |
C10—C11 | 1.392 (3) | ||
O2—Co1—O2i | 176.53 (10) | C11—C10—H10 | 119.4 |
O2—Co1—O3 | 86.72 (7) | C12—C11—C10 | 117.7 (2) |
O2i—Co1—O3 | 90.75 (7) | C12—C11—C14 | 119.0 (2) |
O2—Co1—O3i | 90.75 (7) | C10—C11—C14 | 123.2 (2) |
O2i—Co1—O3i | 86.72 (7) | C13—C12—C11 | 121.6 (2) |
O3—Co1—O3i | 86.54 (10) | C13—C12—H12 | 119.2 |
O2—Co1—N1i | 92.64 (8) | C11—C12—H12 | 119.2 |
O2i—Co1—N1i | 89.85 (7) | C12—C13—C8 | 119.9 (2) |
O3—Co1—N1i | 92.71 (8) | C12—C13—H13 | 120.1 |
O3i—Co1—N1i | 176.47 (7) | C8—C13—H13 | 120.1 |
O2—Co1—N1 | 89.85 (7) | O2—C14—C15 | 123.2 (2) |
O2i—Co1—N1 | 92.65 (8) | O2—C14—C11 | 116.3 (2) |
O3—Co1—N1 | 176.47 (7) | C15—C14—C11 | 120.6 (2) |
O3i—Co1—N1 | 92.71 (8) | C16—C15—C14 | 124.1 (2) |
N1i—Co1—N1 | 88.26 (11) | C16—C15—H15 | 118.0 |
C6—C1—C2 | 120.8 (3) | C14—C15—H15 | 118.0 |
C6—C1—H1 | 119.6 | O3—C16—C15 | 130.0 (2) |
C2—C1—H1 | 119.6 | O3—C16—C17 | 112.7 (2) |
C3—C2—C1 | 120.9 (4) | C15—C16—C17 | 117.3 (2) |
C3—C2—H2 | 119.6 | F3—C17—F2 | 106.4 (3) |
C1—C2—H2 | 119.6 | F3—C17—F1 | 105.4 (3) |
C4—C3—C2 | 119.1 (3) | F2—C17—F1 | 105.2 (3) |
C4—C3—H3 | 120.5 | F3—C17—C16 | 112.8 (3) |
C2—C3—H3 | 120.5 | F2—C17—C16 | 111.2 (2) |
C3—C4—C5 | 120.7 (3) | F1—C17—C16 | 115.2 (2) |
C3—C4—H4 | 119.6 | N1—C18—C19 | 123.2 (3) |
C5—C4—H4 | 119.6 | N1—C18—H18 | 118.4 |
C6—C5—C4 | 120.3 (3) | C19—C18—H18 | 118.4 |
C6—C5—H5 | 119.9 | C20—C19—C18 | 119.4 (3) |
C4—C5—H5 | 119.9 | C20—C19—H19 | 120.3 |
C5—C6—C1 | 118.2 (3) | C18—C19—H19 | 120.3 |
C5—C6—C7 | 120.3 (3) | C21—C20—C19 | 118.1 (3) |
C1—C6—C7 | 121.3 (3) | C21—C20—H20 | 120.9 |
O1—C7—C6 | 109.3 (2) | C19—C20—H20 | 120.9 |
O1—C7—H7A | 109.8 | C20—C21—C22 | 119.6 (3) |
C6—C7—H7A | 109.8 | C20—C21—H21 | 120.2 |
O1—C7—H7B | 109.8 | C22—C21—H21 | 120.2 |
C6—C7—H7B | 109.8 | N1—C22—C21 | 123.4 (3) |
H7A—C7—H7B | 108.3 | N1—C22—H22 | 118.3 |
O1—C8—C9 | 116.3 (2) | C21—C22—H22 | 118.3 |
O1—C8—C13 | 124.3 (2) | C22—N1—C18 | 116.3 (2) |
C9—C8—C13 | 119.4 (2) | C22—N1—Co1 | 119.75 (18) |
C10—C9—C8 | 120.2 (2) | C18—N1—Co1 | 123.97 (18) |
C10—C9—H9 | 119.9 | C8—O1—C7 | 117.3 (2) |
C8—C9—H9 | 119.9 | C14—O2—Co1 | 127.68 (15) |
C9—C10—C11 | 121.1 (2) | C16—O3—Co1 | 121.67 (15) |
C9—C10—H10 | 119.4 | ||
C6—C1—C2—C3 | 0.7 (6) | C18—C19—C20—C21 | 0.7 (5) |
C1—C2—C3—C4 | −0.3 (6) | C19—C20—C21—C22 | −0.8 (5) |
C2—C3—C4—C5 | 0.1 (6) | C20—C21—C22—N1 | 0.7 (5) |
C3—C4—C5—C6 | −0.4 (6) | C21—C22—N1—C18 | −0.3 (4) |
C4—C5—C6—C1 | 0.9 (5) | C21—C22—N1—Co1 | 179.1 (2) |
C4—C5—C6—C7 | 177.3 (3) | C19—C18—N1—C22 | 0.2 (4) |
C2—C1—C6—C5 | −1.0 (5) | C19—C18—N1—Co1 | −179.3 (2) |
C2—C1—C6—C7 | −177.4 (3) | O2—Co1—N1—C22 | −169.9 (2) |
C5—C6—C7—O1 | 122.3 (3) | O2i—Co1—N1—C22 | 12.5 (2) |
C1—C6—C7—O1 | −61.4 (4) | O3—Co1—N1—C22 | 176.8 (11) |
O1—C8—C9—C10 | −175.8 (2) | O3i—Co1—N1—C22 | 99.3 (2) |
C13—C8—C9—C10 | 2.2 (4) | N1i—Co1—N1—C22 | −77.3 (2) |
C8—C9—C10—C11 | 0.5 (4) | O2—Co1—N1—C18 | 9.5 (2) |
C9—C10—C11—C12 | −2.4 (4) | O2i—Co1—N1—C18 | −168.1 (2) |
C9—C10—C11—C14 | 173.7 (2) | O3—Co1—N1—C18 | −3.8 (13) |
C10—C11—C12—C13 | 1.7 (4) | O3i—Co1—N1—C18 | −81.3 (2) |
C14—C11—C12—C13 | −174.6 (2) | N1i—Co1—N1—C18 | 102.1 (2) |
C11—C12—C13—C8 | 1.0 (4) | C9—C8—O1—C7 | 179.2 (2) |
O1—C8—C13—C12 | 174.9 (3) | C13—C8—O1—C7 | 1.3 (4) |
C9—C8—C13—C12 | −2.9 (4) | C6—C7—O1—C8 | −177.0 (2) |
C12—C11—C14—O2 | 20.2 (3) | C15—C14—O2—Co1 | −17.7 (3) |
C10—C11—C14—O2 | −155.8 (2) | C11—C14—O2—Co1 | 163.27 (16) |
C12—C11—C14—C15 | −158.8 (2) | O2i—Co1—O2—C14 | −17.4 (2) |
C10—C11—C14—C15 | 25.2 (4) | O3—Co1—O2—C14 | 25.9 (2) |
O2—C14—C15—C16 | −1.3 (4) | O3i—Co1—O2—C14 | −60.6 (2) |
C11—C14—C15—C16 | 177.7 (2) | N1i—Co1—O2—C14 | 118.5 (2) |
C14—C15—C16—O3 | 0.0 (5) | N1—Co1—O2—C14 | −153.3 (2) |
C14—C15—C16—C17 | −179.4 (2) | C15—C16—O3—Co1 | 18.4 (4) |
O3—C16—C17—F3 | −50.1 (3) | C17—C16—O3—Co1 | −162.15 (18) |
C15—C16—C17—F3 | 129.5 (3) | O2—Co1—O3—C16 | −24.7 (2) |
O3—C16—C17—F2 | 69.4 (3) | O2i—Co1—O3—C16 | 152.9 (2) |
C15—C16—C17—F2 | −111.1 (3) | O3i—Co1—O3—C16 | 66.22 (18) |
O3—C16—C17—F1 | −171.1 (2) | N1i—Co1—O3—C16 | −117.23 (19) |
C15—C16—C17—F1 | 8.5 (4) | N1—Co1—O3—C16 | −11.5 (13) |
N1—C18—C19—C20 | −0.4 (5) |
Symmetry code: (i) −x+1, y, −z+3/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···F2ii | 0.93 | 2.62 | 3.385 (3) | 140 |
C19—H19···F3iii | 0.93 | 2.63 | 3.348 (3) | 134 |
C7—H7B···F1iii | 0.97 | 2.62 | 3.507 (3) | 152 |
Symmetry codes: (ii) x−1/2, −y+5/2, z+1/2; (iii) x−1/2, y−1/2, z. |
Experimental details
Crystal data | |
Chemical formula | [Co(C17H12F3O3)2(C5H5N)2] |
Mr | 859.66 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 293 |
a, b, c (Å) | 16.5435 (11), 10.7359 (7), 23.0706 (14) |
β (°) | 107.333 (1) |
V (Å3) | 3911.5 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.52 |
Crystal size (mm) | 0.20 × 0.20 × 0.06 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.903, 0.970 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 21577, 4453, 2849 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.051, 0.151, 1.09 |
No. of reflections | 4453 |
No. of parameters | 267 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.46, −0.40 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 1999), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···F2i | 0.93 | 2.62 | 3.385 (3) | 140.1 |
C19—H19···F3ii | 0.93 | 2.63 | 3.348 (3) | 134.4 |
C7—H7B···F1ii | 0.97 | 2.62 | 3.507 (3) | 151.7 |
Symmetry codes: (i) x−1/2, −y+5/2, z+1/2; (ii) x−1/2, y−1/2, z. |
Acknowledgements
The authors are grateful to Hubei Normal University for financial support (grant No. 2009F104).
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.
Coordination complexes of metal ions with β-diketonate ligands have proven useful in a wide range of application (Melnik et al., 1999; Soldatov et al., 2003; Youngme et al., 2007). The modification of the steric properties of the β-diketonate ligand is significant as a means of controlling the ability for additional ligand binding. Herein, we report the crystal structure of the title compound (I), which is a pyridine adduct of cobalt(II) complex with ligand 1-(4-(benzyloxy)phenyl)-4,4,4-trifluorobutane-1,3-dione (Fig. 1).
In (I), the cobalt(II) is six-coordinated by four O atoms of the ligands and two N atoms of pyridines, giving an octahedral geometry. Atoms O2, O3, O2a and N1 form an equatorial plane, while N1a and O3a occupy the axial positions. The coordinating bond lengths [Co1—N1 = 2.158 (2) Å, Co1—O2 = 2.055 (2) Å, Co1—O3 = 2.088 (2) Å] are in good agree with those found in other CoII β-diketonate complex (Feng, 2002). The bond lengths of C14—C15 and C15—C16 are 1.405 (3) and 1.388 (3) Å respectively, which indicate the carbon-carbon double bond in the enol form of ligand is close to the trifluoromethyl group. The angles of O2—Co1—O2a and O3—Co1—N1 are 176.53 (10)° and 176.47 (7)° respectively, suggesting almost coplanar nature of O2, O3, O2a, N1 and Co1 (largest deviation 0.06 Å). Two pyridyl rings are nearly perpendicular with the dihedral angle of 84.63 (7)°. The dihedral angle between two phenyl rings of C1–C6 and C8–C13 in each independent ligand is 58.83 (2)°. Weak intermolecular C—H···F hydrogen bonds (Table 1) consolidate the crystal packing.