supplementary materials
Bis[1,3-bis(benzimidazol-2-yl)-2-oxapropane]copper(II)-picrate-dimethylformamide (1/2/4)
In the title compound, [Cu(C16H14N4O)2](C6H2N3O7)2·4C3H7NO, the CuII ion is located on a crystallographic inversion center and is coordinated in a distorted octahedral environment by four N atoms and two O atoms forming two long Cu-O bonds. One of the unique dimethylformamide solvent molecules is disordered over two sites with occupancies of 0.715 (6) and 0.285 (6). The crystal structure is stabilized by intermolecular N-H
O hydrogen bonds.
To a stirred solution of 1,3-bis(benzimidazol-2-yl)-2-oxopropane (0.139 g, 0.5 mmol) in hot MeOH (15 ml) was added Cu(C6H2N3O7)2 (0.130 g, 0.25 mmol) in MeOH (5 ml). A green crystalline product formed rapidly. The
precipitate was filtered off, washed with MeOH and absolute Et2O, and dried
in vacuo. The dried precipitate was dissolved in DMF resulting in a
green solution. The green crystals suitable for X-ray diffraction studies
were obtained by ether diffusion into DMF after three days at room
temperature.
Yield, 0.106 g (66%). (found: C, 49.23; H, 4.37; N,18.58.
Calcd. for C56H60N18O20Cu: C, 49.14; H, 4.42; N, 18.42)
All H atoms were found in difference electron maps and were subsequently refined
in a riding-model approximation with C—H distances ranging from 0.93 to 0.96 Å and Uiso(H) = 1.2 Ueq(C). The H atoms bonded to N atoms
were refined independently with the distance constraint of N-H = 0.86 (1)Å.
One of the unique DMF solvent molecules is disorderd over two sites with
refined occupancies 0.715 (6) and 0.285 (6). The minor component was refined
isotropically and constrained to be geometrically similar to the major
component using the SAME instruction in SHELXL (Sheldrick, 2008).
Data collection: RAPID-AUTO (Rigaku/MSC, 2004); cell refinement: RAPID-AUTO (Rigaku/MSC, 2004); data reduction: RAPID-AUTO (Rigaku/MSC, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Bis[1,3-bis(benzimidazol-2-yl)-2-oxapropane]copper(II)–picrate–\
dimethylformamide (1/2/4)
top
Crystal data top
| [Cu(C16H14N4O)2](C6H2N3O7)2·4C3H7NO | Z = 1 |
| Mr = 1368.77 | F(000) = 711 |
| Triclinic, P1 | Dx = 1.506 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
| a = 10.9656 (7) Å | Cell parameters from 5605 reflections |
| b = 12.6028 (12) Å | θ = 3.0–25.5° |
| c = 13.4100 (9) Å | µ = 0.46 mm−1 |
| α = 65.746 (2)° | T = 293 K |
| β = 88.629 (2)° | Block, green |
| γ = 65.187 (2)° | 0.28 × 0.21 × 0.11 mm |
| V = 1508.8 (2) Å3 | |
Data collection top
Rigaku R-AXIS Spider diffractometer | 5605 independent reflections |
| Radiation source: fine-focus sealed tube | 3363 reflections with I > 2σ(I) |
| graphite | Rint = 0.078 |
| φ and ω scans | θmax = 25.5°, θmin = 3.0° |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | h = −13→13 |
| Tmin = 0.883, Tmax = 0.952 | k = −15→15 |
| 12429 measured reflections | l = −16→15 |
Refinement top
| Refinement on F2 | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| R[F2 > 2σ(F2)] = 0.075 | H atoms treated by a mixture of independent and constrained refinement |
| wR(F2) = 0.232 | w = 1/[σ2(Fo2) + (0.1327P)2] where P = (Fo2 + 2Fc2)/3 |
| S = 1.01 | (Δ/σ)max < 0.001 |
| 5605 reflections | Δρmax = 0.78 e Å−3 |
| 457 parameters | Δρmin = −1.09 e Å−3 |
| 18 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
| Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.009 (3) |
Crystal data top
| [Cu(C16H14N4O)2](C6H2N3O7)2·4C3H7NO | γ = 65.187 (2)° |
| Mr = 1368.77 | V = 1508.8 (2) Å3 |
| Triclinic, P1 | Z = 1 |
| a = 10.9656 (7) Å | Mo Kα radiation |
| b = 12.6028 (12) Å | µ = 0.46 mm−1 |
| c = 13.4100 (9) Å | T = 293 K |
| α = 65.746 (2)° | 0.28 × 0.21 × 0.11 mm |
| β = 88.629 (2)° | |
Data collection top
Rigaku R-AXIS Spider diffractometer | 3363 reflections with I > 2σ(I) |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | Rint = 0.078 |
| Tmin = 0.883, Tmax = 0.952 | θmax = 25.5° |
| 12429 measured reflections | Standard reflections: 0 |
| 5605 independent reflections | |
Refinement top
| R[F2 > 2σ(F2)] = 0.075 | H atoms treated by a mixture of independent and constrained refinement |
| wR(F2) = 0.232 | Δρmax = 0.78 e Å−3 |
| S = 1.01 | Δρmin = −1.09 e Å−3 |
| 5605 reflections | Absolute structure: ? |
| 457 parameters | Flack parameter: ? |
| 18 restraints | Rogers parameter: ? |
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 | Uiso*/Ueq | Occ. (<1) |
| Cu | 0.0000 | 0.5000 | 0.5000 | 0.0414 (3) | |
| O1 | 0.1409 (3) | 0.5704 (3) | 0.5882 (2) | 0.0445 (8) | |
| O2 | −0.1106 (4) | 0.1849 (4) | 0.7815 (3) | 0.0747 (12) | |
| O3 | −0.0335 (4) | −0.0186 (5) | 0.8206 (3) | 0.0701 (11) | |
| O4 | 0.4289 (4) | −0.3097 (4) | 1.0041 (3) | 0.0651 (11) | |
| O5 | 0.4919 (4) | −0.2964 (4) | 1.1479 (3) | 0.0816 (14) | |
| O6 | 0.4312 (3) | −0.0496 (4) | 1.1048 (3) | 0.0577 (10) | |
| O7 | 0.3068 (6) | 0.1965 (6) | 1.0630 (6) | 0.151 (3) | |
| O8 | 0.1451 (5) | 0.3258 (4) | 0.9307 (4) | 0.0838 (13) | |
| N1 | 0.1462 (3) | 0.3364 (4) | 0.6167 (3) | 0.0418 (9) | |
| N2 | 0.3339 (4) | 0.2162 (4) | 0.7450 (3) | 0.0440 (10) | |
| N3 | 0.1426 (3) | 0.5132 (4) | 0.4093 (3) | 0.0434 (10) | |
| N4 | 0.3198 (4) | 0.5527 (5) | 0.3577 (3) | 0.0493 (10) | |
| N5 | −0.0233 (4) | 0.0710 (6) | 0.8286 (3) | 0.0577 (12) | |
| N6 | 0.4176 (4) | −0.2487 (5) | 1.0584 (3) | 0.0574 (12) | |
| N7 | 0.2262 (4) | 0.2166 (5) | 0.9921 (3) | 0.0593 (12) | |
| C1 | 0.1934 (4) | 0.2071 (5) | 0.6375 (4) | 0.0431 (11) | |
| C2 | 0.1446 (5) | 0.1495 (5) | 0.5898 (4) | 0.0488 (12) | |
| H2 | 0.0674 | 0.1994 | 0.5343 | 0.059* | |
| C3 | 0.2141 (5) | 0.0169 (6) | 0.6273 (4) | 0.0561 (13) | |
| H3 | 0.1823 | −0.0239 | 0.5980 | 0.067* | |
| C4 | 0.3320 (5) | −0.0576 (6) | 0.7088 (4) | 0.0586 (14) | |
| H4 | 0.3773 | −0.1471 | 0.7319 | 0.070* | |
| C5 | 0.3832 (5) | −0.0029 (5) | 0.7558 (4) | 0.0490 (12) | |
| H5 | 0.4619 | −0.0528 | 0.8098 | 0.059* | |
| C6 | 0.3118 (4) | 0.1294 (5) | 0.7189 (3) | 0.0436 (11) | |
| C7 | 0.2347 (4) | 0.3364 (5) | 0.6822 (4) | 0.0433 (12) | |
| C8 | 0.2230 (4) | 0.4562 (5) | 0.6871 (4) | 0.0468 (12) | |
| H8A | 0.1828 | 0.4627 | 0.7508 | 0.056* | |
| H8B | 0.3134 | 0.4503 | 0.6965 | 0.056* | |
| C9 | 0.2173 (4) | 0.6123 (5) | 0.5063 (4) | 0.0481 (12) | |
| H9A | 0.3083 | 0.5841 | 0.5424 | 0.058* | |
| H9B | 0.1733 | 0.7067 | 0.4674 | 0.058* | |
| C10 | 0.2273 (4) | 0.5579 (5) | 0.4249 (4) | 0.0464 (12) | |
| C11 | 0.2956 (4) | 0.5003 (5) | 0.2916 (4) | 0.0498 (13) | |
| C12 | 0.3633 (5) | 0.4699 (6) | 0.2106 (4) | 0.0596 (15) | |
| H12 | 0.4351 | 0.4895 | 0.1874 | 0.072* | |
| C13 | 0.3170 (5) | 0.4088 (7) | 0.1670 (5) | 0.0686 (17) | |
| H13 | 0.3598 | 0.3854 | 0.1134 | 0.082* | |
| C14 | 0.2084 (5) | 0.3810 (6) | 0.2004 (4) | 0.0662 (16) | |
| H14 | 0.1808 | 0.3396 | 0.1687 | 0.079* | |
| C15 | 0.1411 (5) | 0.4134 (6) | 0.2791 (4) | 0.0564 (14) | |
| H15 | 0.0686 | 0.3947 | 0.3014 | 0.068* | |
| C16 | 0.1863 (4) | 0.4754 (5) | 0.3240 (4) | 0.0444 (11) | |
| C17 | 0.0969 (4) | 0.0407 (5) | 0.8985 (4) | 0.0480 (12) | |
| C18 | 0.2005 (5) | −0.0854 (5) | 0.9460 (4) | 0.0496 (13) | |
| H18 | 0.1943 | −0.1493 | 0.9315 | 0.060* | |
| C19 | 0.3118 (4) | −0.1151 (5) | 1.0143 (4) | 0.0496 (13) | |
| C20 | 0.3311 (4) | −0.0229 (5) | 1.0410 (3) | 0.0456 (12) | |
| C21 | 0.2194 (5) | 0.1088 (5) | 0.9812 (4) | 0.0472 (12) | |
| C22 | 0.1076 (4) | 0.1381 (5) | 0.9134 (4) | 0.0488 (13) | |
| H22 | 0.0392 | 0.2234 | 0.8776 | 0.059* | |
| O9 | 0.5277 (3) | 0.3378 (4) | 0.6011 (3) | 0.0581 (10) | |
| N8 | 0.5913 (4) | 0.1433 (4) | 0.6002 (3) | 0.0551 (12) | |
| C23 | 0.6860 (5) | 0.0045 (5) | 0.6489 (4) | 0.0723 (18) | |
| H23A | 0.7387 | −0.0147 | 0.5950 | 0.087* | |
| H23B | 0.6355 | −0.0454 | 0.6710 | 0.087* | |
| H23C | 0.7461 | −0.0176 | 0.7128 | 0.087* | |
| C24 | 0.4876 (5) | 0.1923 (6) | 0.5051 (4) | 0.0651 (16) | |
| H24A | 0.4192 | 0.2779 | 0.4908 | 0.078* | |
| H24B | 0.4459 | 0.1350 | 0.5211 | 0.078* | |
| H24C | 0.5295 | 0.1961 | 0.4408 | 0.078* | |
| C25 | 0.6028 (5) | 0.2181 (5) | 0.6400 (4) | 0.0551 (14) | |
| H25 | 0.6710 | 0.1799 | 0.7010 | 0.066* | |
| O10 | 0.1119 (11) | 0.8119 (10) | 0.6125 (7) | 0.161 (4) | 0.715 (6) |
| N9 | 0.1418 (5) | 0.6993 (7) | 0.7922 (6) | 0.068 (2) | 0.715 (6) |
| C26 | 0.2883 (6) | 0.6379 (9) | 0.7915 (9) | 0.095 (4) | 0.715 (6) |
| H26A | 0.3044 | 0.6737 | 0.7170 | 0.143* | 0.715 (6) |
| H26B | 0.3205 | 0.5457 | 0.8187 | 0.143* | 0.715 (6) |
| H26C | 0.3360 | 0.6541 | 0.8384 | 0.143* | 0.715 (6) |
| C27 | 0.0966 (8) | 0.6585 (9) | 0.8996 (6) | 0.081 (3) | 0.715 (6) |
| H27A | −0.0009 | 0.7062 | 0.8888 | 0.122* | 0.715 (6) |
| H27B | 0.1386 | 0.6758 | 0.9493 | 0.122* | 0.715 (6) |
| H27C | 0.1225 | 0.5670 | 0.9309 | 0.122* | 0.715 (6) |
| C28 | 0.0578 (8) | 0.7873 (8) | 0.6984 (6) | 0.071 (3) | 0.715 (6) |
| H28A | −0.0359 | 0.8292 | 0.6950 | 0.085* | 0.715 (6) |
| O10A | 0.3069 (17) | 0.6919 (19) | 0.6726 (13) | 0.100* | 0.285 (6) |
| N9A | 0.1822 (19) | 0.667 (3) | 0.8055 (15) | 0.100* | 0.285 (6) |
| C26A | 0.303 (2) | 0.552 (2) | 0.8825 (17) | 0.100* | 0.285 (6) |
| H26D | 0.3777 | 0.5331 | 0.8430 | 0.150* | 0.285 (6) |
| H26E | 0.2838 | 0.4784 | 0.9143 | 0.150* | 0.285 (6) |
| H26F | 0.3281 | 0.5688 | 0.9406 | 0.150* | 0.285 (6) |
| C27A | 0.0588 (19) | 0.700 (3) | 0.8533 (19) | 0.100* | 0.285 (6) |
| H27D | −0.0151 | 0.7755 | 0.7973 | 0.150* | 0.285 (6) |
| H27E | 0.0739 | 0.7182 | 0.9135 | 0.150* | 0.285 (6) |
| H27F | 0.0364 | 0.6282 | 0.8806 | 0.150* | 0.285 (6) |
| C28A | 0.1935 (19) | 0.729 (2) | 0.7029 (14) | 0.100* | 0.285 (6) |
| H28B | 0.1175 | 0.8016 | 0.6525 | 0.120* | 0.285 (6) |
| H2N | 0.400 (4) | 0.199 (6) | 0.792 (4) | 0.08 (2)* | |
| H4N | 0.374 (5) | 0.587 (5) | 0.357 (4) | 0.069 (18)* | |
Atomic displacement parameters (Å2) top| | U11 | U22 | U33 | U12 | U13 | U23 |
| Cu | 0.0295 (4) | 0.0509 (6) | 0.0466 (5) | −0.0148 (4) | 0.0089 (3) | −0.0273 (4) |
| O1 | 0.0332 (15) | 0.051 (2) | 0.0461 (17) | −0.0136 (15) | 0.0083 (14) | −0.0237 (16) |
| O2 | 0.045 (2) | 0.073 (3) | 0.077 (3) | −0.011 (2) | −0.0100 (19) | −0.021 (2) |
| O3 | 0.058 (2) | 0.081 (3) | 0.070 (2) | −0.029 (2) | −0.0037 (19) | −0.033 (2) |
| O4 | 0.063 (2) | 0.059 (3) | 0.068 (2) | −0.0146 (19) | 0.0012 (18) | −0.037 (2) |
| O5 | 0.081 (3) | 0.064 (3) | 0.064 (2) | −0.002 (2) | −0.032 (2) | −0.026 (2) |
| O6 | 0.0501 (19) | 0.060 (2) | 0.0532 (19) | −0.0160 (17) | −0.0023 (16) | −0.0245 (18) |
| O7 | 0.136 (5) | 0.082 (4) | 0.197 (6) | 0.010 (3) | −0.097 (5) | −0.082 (4) |
| O8 | 0.084 (3) | 0.059 (3) | 0.088 (3) | −0.019 (2) | −0.011 (2) | −0.026 (2) |
| N1 | 0.0338 (18) | 0.051 (3) | 0.047 (2) | −0.0186 (18) | 0.0123 (17) | −0.027 (2) |
| N2 | 0.0352 (19) | 0.054 (3) | 0.044 (2) | −0.0163 (19) | 0.0124 (18) | −0.027 (2) |
| N3 | 0.0315 (17) | 0.054 (3) | 0.045 (2) | −0.0156 (18) | 0.0086 (16) | −0.027 (2) |
| N4 | 0.0325 (19) | 0.058 (3) | 0.059 (2) | −0.019 (2) | 0.0144 (19) | −0.028 (2) |
| N5 | 0.041 (2) | 0.080 (4) | 0.047 (2) | −0.023 (2) | 0.0048 (19) | −0.027 (3) |
| N6 | 0.052 (2) | 0.059 (3) | 0.057 (2) | −0.015 (2) | 0.007 (2) | −0.032 (2) |
| N7 | 0.051 (2) | 0.063 (3) | 0.048 (2) | −0.007 (2) | −0.002 (2) | −0.030 (2) |
| C1 | 0.037 (2) | 0.055 (3) | 0.045 (2) | −0.021 (2) | 0.015 (2) | −0.029 (2) |
| C2 | 0.043 (2) | 0.058 (3) | 0.048 (3) | −0.022 (2) | 0.012 (2) | −0.026 (3) |
| C3 | 0.061 (3) | 0.063 (4) | 0.053 (3) | −0.030 (3) | 0.018 (3) | −0.033 (3) |
| C4 | 0.067 (3) | 0.054 (4) | 0.059 (3) | −0.026 (3) | 0.025 (3) | −0.030 (3) |
| C5 | 0.045 (2) | 0.058 (3) | 0.042 (2) | −0.015 (2) | 0.009 (2) | −0.028 (2) |
| C6 | 0.037 (2) | 0.048 (3) | 0.041 (2) | −0.013 (2) | 0.013 (2) | −0.022 (2) |
| C7 | 0.0260 (19) | 0.061 (3) | 0.042 (2) | −0.012 (2) | 0.0078 (18) | −0.030 (2) |
| C8 | 0.039 (2) | 0.058 (3) | 0.044 (2) | −0.017 (2) | 0.002 (2) | −0.027 (2) |
| C9 | 0.035 (2) | 0.059 (3) | 0.053 (3) | −0.021 (2) | 0.010 (2) | −0.028 (3) |
| C10 | 0.031 (2) | 0.058 (3) | 0.053 (3) | −0.017 (2) | 0.009 (2) | −0.030 (2) |
| C11 | 0.036 (2) | 0.057 (3) | 0.049 (3) | −0.011 (2) | 0.009 (2) | −0.027 (3) |
| C12 | 0.043 (3) | 0.073 (4) | 0.062 (3) | −0.021 (3) | 0.021 (2) | −0.036 (3) |
| C13 | 0.048 (3) | 0.096 (5) | 0.075 (3) | −0.024 (3) | 0.027 (3) | −0.059 (4) |
| C14 | 0.057 (3) | 0.085 (5) | 0.070 (3) | −0.026 (3) | 0.021 (3) | −0.052 (3) |
| C15 | 0.041 (2) | 0.070 (4) | 0.062 (3) | −0.021 (3) | 0.014 (2) | −0.038 (3) |
| C16 | 0.031 (2) | 0.053 (3) | 0.047 (2) | −0.012 (2) | 0.0093 (19) | −0.027 (2) |
| C17 | 0.038 (2) | 0.059 (3) | 0.043 (2) | −0.018 (2) | 0.008 (2) | −0.023 (2) |
| C18 | 0.046 (3) | 0.064 (4) | 0.041 (2) | −0.027 (3) | 0.014 (2) | −0.023 (2) |
| C19 | 0.040 (2) | 0.057 (3) | 0.043 (2) | −0.010 (2) | 0.005 (2) | −0.026 (2) |
| C20 | 0.041 (2) | 0.052 (3) | 0.033 (2) | −0.013 (2) | 0.008 (2) | −0.017 (2) |
| C21 | 0.047 (3) | 0.052 (3) | 0.043 (2) | −0.017 (2) | 0.016 (2) | −0.027 (2) |
| C22 | 0.036 (2) | 0.058 (3) | 0.041 (2) | −0.010 (2) | 0.007 (2) | −0.022 (2) |
| O9 | 0.0464 (18) | 0.070 (3) | 0.062 (2) | −0.0275 (19) | 0.0155 (17) | −0.032 (2) |
| N8 | 0.038 (2) | 0.067 (3) | 0.052 (2) | −0.014 (2) | 0.0108 (18) | −0.028 (2) |
| C23 | 0.055 (3) | 0.072 (4) | 0.070 (3) | −0.009 (3) | 0.013 (3) | −0.034 (3) |
| C24 | 0.056 (3) | 0.077 (4) | 0.053 (3) | −0.018 (3) | 0.003 (3) | −0.032 (3) |
| C25 | 0.038 (2) | 0.079 (4) | 0.055 (3) | −0.027 (3) | 0.015 (2) | −0.035 (3) |
| O10 | 0.230 (12) | 0.138 (9) | 0.169 (9) | −0.105 (9) | 0.009 (9) | −0.091 (8) |
| N9 | 0.016 (3) | 0.079 (5) | 0.137 (7) | −0.012 (3) | 0.021 (3) | −0.082 (5) |
| C26 | 0.025 (3) | 0.086 (7) | 0.202 (13) | −0.011 (4) | 0.008 (5) | −0.102 (9) |
| C27 | 0.082 (6) | 0.054 (6) | 0.077 (6) | −0.025 (5) | −0.019 (5) | −0.006 (5) |
| C28 | 0.087 (6) | 0.078 (7) | 0.079 (6) | −0.055 (6) | 0.027 (5) | −0.046 (6) |
Geometric parameters (Å, °) top
| Cu—N3 | 1.979 (3) | C13—C14 | 1.392 (8) |
| Cu—N3i | 1.979 (3) | C13—H13 | 0.9300 |
| Cu—N1 | 1.992 (4) | C14—C15 | 1.375 (6) |
| Cu—N1i | 1.992 (4) | C14—H14 | 0.9300 |
| Cu—O1i | 2.583 (3) | C15—C16 | 1.395 (7) |
| Cu—O1 | 2.583 (3) | C15—H15 | 0.9300 |
| O1—C9 | 1.427 (5) | C17—C22 | 1.373 (7) |
| O1—C8 | 1.429 (5) | C17—C18 | 1.382 (7) |
| O2—N5 | 1.227 (6) | C18—C19 | 1.363 (6) |
| O3—N5 | 1.227 (6) | C18—H18 | 0.9300 |
| O4—N6 | 1.230 (5) | C19—C20 | 1.440 (7) |
| O5—N6 | 1.228 (5) | C20—C21 | 1.465 (7) |
| O6—C20 | 1.244 (5) | C21—C22 | 1.366 (6) |
| O7—N7 | 1.185 (5) | C22—H22 | 0.9300 |
| O8—N7 | 1.199 (6) | O9—C25 | 1.248 (6) |
| N1—C7 | 1.324 (5) | N8—C25 | 1.306 (6) |
| N1—C1 | 1.387 (6) | N8—C23 | 1.461 (6) |
| N2—C7 | 1.342 (6) | N8—C24 | 1.461 (5) |
| N2—C6 | 1.386 (6) | C23—H23A | 0.9600 |
| N2—H2N | 0.87 (5) | C23—H23B | 0.9600 |
| N3—C10 | 1.329 (6) | C23—H23C | 0.9600 |
| N3—C16 | 1.413 (5) | C24—H24A | 0.9600 |
| N4—C10 | 1.339 (6) | C24—H24B | 0.9600 |
| N4—C11 | 1.389 (6) | C24—H24C | 0.9600 |
| N4—H4N | 0.87 (5) | C25—H25 | 0.9300 |
| N5—C17 | 1.451 (6) | O10—C28 | 1.266 (7) |
| N6—C19 | 1.451 (6) | N9—C28 | 1.309 (7) |
| N7—C21 | 1.456 (7) | N9—C26 | 1.463 (6) |
| C1—C2 | 1.395 (6) | N9—C27 | 1.468 (6) |
| C1—C6 | 1.399 (6) | C26—H26A | 0.9600 |
| C2—C3 | 1.373 (8) | C26—H26B | 0.9600 |
| C2—H2 | 0.9300 | C26—H26C | 0.9600 |
| C3—C4 | 1.397 (7) | C27—H27A | 0.9600 |
| C3—H3 | 0.9300 | C27—H27B | 0.9600 |
| C4—C5 | 1.374 (7) | C27—H27C | 0.9600 |
| C4—H4 | 0.9300 | C28—H28A | 0.9300 |
| C5—C6 | 1.372 (7) | O10A—C28A | 1.255 (8) |
| C5—H5 | 0.9300 | N9A—C28A | 1.309 (7) |
| C7—C8 | 1.490 (7) | N9A—C27A | 1.456 (7) |
| C8—H8A | 0.9700 | N9A—C26A | 1.466 (7) |
| C8—H8B | 0.9700 | C26A—H26D | 0.9600 |
| C9—C10 | 1.489 (6) | C26A—H26E | 0.9600 |
| C9—H9A | 0.9700 | C26A—H26F | 0.9600 |
| C9—H9B | 0.9700 | C27A—H27D | 0.9600 |
| C11—C16 | 1.380 (7) | C27A—H27E | 0.9600 |
| C11—C12 | 1.394 (6) | C27A—H27F | 0.9600 |
| C12—C13 | 1.381 (8) | C28A—H28B | 0.9300 |
| C12—H12 | 0.9300 | | |
| | | |
| N3—Cu—N3i | 180 | C14—C13—H13 | 118.8 |
| N3—Cu—N1 | 87.55 (15) | C15—C14—C13 | 121.4 (5) |
| N3i—Cu—N1 | 92.45 (15) | C15—C14—H14 | 119.3 |
| N3—Cu—N1i | 92.45 (15) | C13—C14—H14 | 119.3 |
| N3i—Cu—N1i | 87.55 (15) | C14—C15—C16 | 117.1 (5) |
| N1—Cu—N1i | 180 | C14—C15—H15 | 121.5 |
| N3—Cu—O1i | 106.54 (12) | C16—C15—H15 | 121.5 |
| N3i—Cu—O1i | 73.46 (12) | C11—C16—C15 | 120.9 (4) |
| N1—Cu—O1i | 106.14 (13) | C11—C16—N3 | 109.3 (4) |
| N1i—Cu—O1i | 73.86 (13) | C15—C16—N3 | 129.7 (4) |
| N3—Cu—O1 | 73.46 (12) | C22—C17—C18 | 121.3 (4) |
| N3i—Cu—O1 | 106.54 (12) | C22—C17—N5 | 119.6 (5) |
| N1—Cu—O1 | 73.86 (13) | C18—C17—N5 | 119.1 (5) |
| N1i—Cu—O1 | 106.14 (13) | C19—C18—C17 | 119.2 (5) |
| O1i—Cu—O1 | 180 | C19—C18—H18 | 120.4 |
| C9—O1—C8 | 114.0 (3) | C17—C18—H18 | 120.4 |
| C9—O1—Cu | 105.0 (2) | C18—C19—C20 | 124.5 (5) |
| C8—O1—Cu | 104.8 (3) | C18—C19—N6 | 115.8 (5) |
| C7—N1—C1 | 105.4 (4) | C20—C19—N6 | 119.7 (4) |
| C7—N1—Cu | 122.5 (3) | O6—C20—C19 | 124.9 (4) |
| C1—N1—Cu | 131.4 (3) | O6—C20—C21 | 123.4 (5) |
| C7—N2—C6 | 108.1 (4) | C19—C20—C21 | 111.7 (4) |
| C7—N2—H2N | 124 (4) | C22—C21—N7 | 117.0 (5) |
| C6—N2—H2N | 128 (4) | C22—C21—C20 | 123.6 (5) |
| C10—N3—C16 | 104.3 (4) | N7—C21—C20 | 119.4 (4) |
| C10—N3—Cu | 123.2 (3) | C21—C22—C17 | 119.5 (5) |
| C16—N3—Cu | 132.4 (3) | C21—C22—H22 | 120.3 |
| C10—N4—C11 | 107.3 (4) | C17—C22—H22 | 120.3 |
| C10—N4—H4N | 120 (4) | C25—N8—C23 | 120.4 (4) |
| C11—N4—H4N | 133 (4) | C25—N8—C24 | 122.9 (4) |
| O2—N5—O3 | 123.3 (4) | C23—N8—C24 | 116.7 (4) |
| O2—N5—C17 | 118.3 (5) | N8—C23—H23A | 109.5 |
| O3—N5—C17 | 118.4 (5) | N8—C23—H23B | 109.5 |
| O5—N6—O4 | 122.7 (4) | H23A—C23—H23B | 109.5 |
| O5—N6—C19 | 119.1 (4) | N8—C23—H23C | 109.5 |
| O4—N6—C19 | 118.2 (4) | H23A—C23—H23C | 109.5 |
| O7—N7—O8 | 120.8 (6) | H23B—C23—H23C | 109.5 |
| O7—N7—C21 | 120.5 (5) | N8—C24—H24A | 109.5 |
| O8—N7—C21 | 118.7 (4) | N8—C24—H24B | 109.5 |
| N1—C1—C2 | 131.0 (4) | H24A—C24—H24B | 109.5 |
| N1—C1—C6 | 109.6 (4) | N8—C24—H24C | 109.5 |
| C2—C1—C6 | 119.4 (5) | H24A—C24—H24C | 109.5 |
| C3—C2—C1 | 118.0 (4) | H24B—C24—H24C | 109.5 |
| C3—C2—H2 | 121.0 | O9—C25—N8 | 124.0 (4) |
| C1—C2—H2 | 121.0 | O9—C25—H25 | 118.0 |
| C2—C3—C4 | 121.0 (5) | N8—C25—H25 | 118.0 |
| C2—C3—H3 | 119.5 | C28—N9—C26 | 119.1 (6) |
| C4—C3—H3 | 119.5 | C28—N9—C27 | 123.2 (5) |
| C5—C4—C3 | 122.1 (5) | C26—N9—C27 | 117.7 (6) |
| C5—C4—H4 | 118.9 | N9—C26—H26A | 109.5 |
| C3—C4—H4 | 118.9 | N9—C26—H26B | 109.5 |
| C6—C5—C4 | 116.4 (4) | H26A—C26—H26B | 109.5 |
| C6—C5—H5 | 121.8 | N9—C26—H26C | 109.5 |
| C4—C5—H5 | 121.8 | H26A—C26—H26C | 109.5 |
| C5—C6—N2 | 132.3 (4) | H26B—C26—H26C | 109.5 |
| C5—C6—C1 | 123.1 (5) | N9—C27—H27A | 109.5 |
| N2—C6—C1 | 104.6 (4) | N9—C27—H27B | 109.5 |
| N1—C7—N2 | 112.3 (5) | H27A—C27—H27B | 109.5 |
| N1—C7—C8 | 123.6 (4) | N9—C27—H27C | 109.5 |
| N2—C7—C8 | 124.1 (4) | H27A—C27—H27C | 109.5 |
| O1—C8—C7 | 111.3 (3) | H27B—C27—H27C | 109.5 |
| O1—C8—H8A | 109.4 | O10—C28—N9 | 116.0 (7) |
| C7—C8—H8A | 109.4 | O10—C28—H28A | 122.0 |
| O1—C8—H8B | 109.4 | N9—C28—H28A | 122.0 |
| C7—C8—H8B | 109.4 | C28A—N9A—C27A | 126.2 (9) |
| H8A—C8—H8B | 108.0 | C28A—N9A—C26A | 118.7 (8) |
| O1—C9—C10 | 111.0 (4) | C27A—N9A—C26A | 115.1 (8) |
| O1—C9—H9A | 109.4 | N9A—C26A—H26D | 109.5 |
| C10—C9—H9A | 109.4 | N9A—C26A—H26E | 109.5 |
| O1—C9—H9B | 109.4 | H26D—C26A—H26E | 109.5 |
| C10—C9—H9B | 109.4 | N9A—C26A—H26F | 109.5 |
| H9A—C9—H9B | 108.0 | H26D—C26A—H26F | 109.5 |
| N3—C10—N4 | 113.2 (4) | H26E—C26A—H26F | 109.5 |
| N3—C10—C9 | 123.3 (4) | N9A—C27A—H27D | 109.5 |
| N4—C10—C9 | 123.5 (4) | N9A—C27A—H27E | 109.5 |
| C16—C11—N4 | 106.0 (4) | H27D—C27A—H27E | 109.5 |
| C16—C11—C12 | 122.6 (5) | N9A—C27A—H27F | 109.5 |
| N4—C11—C12 | 131.4 (5) | H27D—C27A—H27F | 109.5 |
| C13—C12—C11 | 115.7 (5) | H27E—C27A—H27F | 109.5 |
| C13—C12—H12 | 122.2 | O10A—C28A—N9A | 120.0 (10) |
| C11—C12—H12 | 122.2 | O10A—C28A—H28B | 120.0 |
| C12—C13—C14 | 122.3 (5) | N9A—C28A—H28B | 120.0 |
| C12—C13—H13 | 118.8 | | |
| | | |
| N3—Cu—O1—C9 | 15.0 (3) | C16—N3—C10—N4 | 0.2 (6) |
| N3i—Cu—O1—C9 | −165.0 (3) | Cu—N3—C10—N4 | 177.0 (3) |
| N1—Cu—O1—C9 | 107.2 (3) | C16—N3—C10—C9 | 178.4 (4) |
| N1i—Cu—O1—C9 | −72.8 (3) | Cu—N3—C10—C9 | −4.8 (7) |
| O1i—Cu—O1—C9 | −79 (100) | C11—N4—C10—N3 | 0.0 (6) |
| N3—Cu—O1—C8 | −105.5 (3) | C11—N4—C10—C9 | −178.1 (5) |
| N3i—Cu—O1—C8 | 74.5 (3) | O1—C9—C10—N3 | 19.8 (7) |
| N1—Cu—O1—C8 | −13.2 (2) | O1—C9—C10—N4 | −162.2 (4) |
| N1i—Cu—O1—C8 | 166.8 (2) | C10—N4—C11—C16 | −0.3 (5) |
| O1i—Cu—O1—C8 | 161 (100) | C10—N4—C11—C12 | −177.8 (6) |
| N3—Cu—N1—C7 | 76.3 (3) | C16—C11—C12—C13 | −2.1 (8) |
| N3i—Cu—N1—C7 | −103.7 (3) | N4—C11—C12—C13 | 175.1 (5) |
| N1i—Cu—N1—C7 | −42 (100) | C11—C12—C13—C14 | 0.9 (9) |
| O1i—Cu—N1—C7 | −177.2 (3) | C12—C13—C14—C15 | 0.1 (10) |
| O1—Cu—N1—C7 | 2.8 (3) | C13—C14—C15—C16 | 0.0 (9) |
| N3—Cu—N1—C1 | −92.3 (4) | N4—C11—C16—C15 | −175.4 (4) |
| N3i—Cu—N1—C1 | 87.7 (4) | C12—C11—C16—C15 | 2.4 (8) |
| N1i—Cu—N1—C1 | 149 (100) | N4—C11—C16—N3 | 0.4 (6) |
| O1i—Cu—N1—C1 | 14.2 (4) | C12—C11—C16—N3 | 178.2 (5) |
| O1—Cu—N1—C1 | −165.8 (4) | C14—C15—C16—C11 | −1.2 (8) |
| N3i—Cu—N3—C10 | 153 (100) | C14—C15—C16—N3 | −176.1 (5) |
| N1—Cu—N3—C10 | −79.7 (4) | C10—N3—C16—C11 | −0.4 (5) |
| N1i—Cu—N3—C10 | 100.3 (4) | Cu—N3—C16—C11 | −176.8 (3) |
| O1i—Cu—N3—C10 | 174.2 (4) | C10—N3—C16—C15 | 175.0 (5) |
| O1—Cu—N3—C10 | −5.8 (4) | Cu—N3—C16—C15 | −1.4 (8) |
| N3i—Cu—N3—C16 | −31 (100) | O2—N5—C17—C22 | 2.5 (7) |
| N1—Cu—N3—C16 | 96.1 (4) | O3—N5—C17—C22 | −176.7 (4) |
| N1i—Cu—N3—C16 | −83.9 (4) | O2—N5—C17—C18 | −175.6 (4) |
| O1i—Cu—N3—C16 | −10.0 (4) | O3—N5—C17—C18 | 5.3 (6) |
| O1—Cu—N3—C16 | 170.0 (4) | C22—C17—C18—C19 | 3.9 (7) |
| C7—N1—C1—C2 | −177.3 (4) | N5—C17—C18—C19 | −178.1 (4) |
| Cu—N1—C1—C2 | −7.2 (7) | C17—C18—C19—C20 | −0.5 (7) |
| C7—N1—C1—C6 | 1.0 (5) | C17—C18—C19—N6 | −178.4 (4) |
| Cu—N1—C1—C6 | 171.1 (3) | O5—N6—C19—C18 | −152.7 (5) |
| N1—C1—C2—C3 | 179.6 (4) | O4—N6—C19—C18 | 27.1 (7) |
| C6—C1—C2—C3 | 1.5 (6) | O5—N6—C19—C20 | 29.3 (7) |
| C1—C2—C3—C4 | −1.5 (7) | O4—N6—C19—C20 | −150.9 (4) |
| C2—C3—C4—C5 | 0.6 (7) | C18—C19—C20—O6 | 178.7 (4) |
| C3—C4—C5—C6 | 0.3 (7) | N6—C19—C20—O6 | −3.5 (7) |
| C4—C5—C6—N2 | −178.4 (4) | C18—C19—C20—C21 | −2.9 (6) |
| C4—C5—C6—C1 | −0.4 (7) | N6—C19—C20—C21 | 174.9 (4) |
| C7—N2—C6—C5 | 178.2 (5) | O7—N7—C21—C22 | 167.0 (6) |
| C7—N2—C6—C1 | −0.2 (4) | O8—N7—C21—C22 | −10.0 (7) |
| N1—C1—C6—C5 | −179.0 (4) | O7—N7—C21—C20 | −13.8 (8) |
| C2—C1—C6—C5 | −0.6 (7) | O8—N7—C21—C20 | 169.2 (4) |
| N1—C1—C6—N2 | −0.5 (5) | O6—C20—C21—C22 | −178.2 (4) |
| C2—C1—C6—N2 | 178.0 (4) | C19—C20—C21—C22 | 3.3 (6) |
| C1—N1—C7—N2 | −1.1 (5) | O6—C20—C21—N7 | 2.6 (6) |
| Cu—N1—C7—N2 | −172.3 (3) | C19—C20—C21—N7 | −175.8 (4) |
| C1—N1—C7—C8 | −179.9 (4) | N7—C21—C22—C17 | 178.8 (4) |
| Cu—N1—C7—C8 | 8.9 (6) | C20—C21—C22—C17 | −0.3 (7) |
| C6—N2—C7—N1 | 0.8 (5) | C18—C17—C22—C21 | −3.5 (7) |
| C6—N2—C7—C8 | 179.6 (4) | N5—C17—C22—C21 | 178.5 (4) |
| C9—O1—C8—C7 | −94.6 (4) | C23—N8—C25—O9 | 178.3 (5) |
| Cu—O1—C8—C7 | 19.7 (4) | C24—N8—C25—O9 | −0.3 (7) |
| N1—C7—C8—O1 | −21.8 (6) | C26—N9—C28—O10 | 0.4 (13) |
| N2—C7—C8—O1 | 159.6 (4) | C27—N9—C28—O10 | −179.7 (9) |
| C8—O1—C9—C10 | 94.0 (4) | C27A—N9A—C28A—O10A | 178 (3) |
| Cu—O1—C9—C10 | −20.2 (4) | C26A—N9A—C28A—O10A | −1(5) |
| Symmetry codes: (i) −x, −y+1, −z+1. |
Hydrogen-bond geometry (Å, °) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| N2—H2N···O6ii | 0.87 (5) | 1.95 (4) | 2.709 (5) | 145 (6) |
| N2—H2N···O5ii | 0.87 (5) | 2.41 (5) | 3.104 (6) | 138 (6) |
| N4—H4N···O9iii | 0.87 (5) | 1.92 (2) | 2.753 (6) | 162 (5) |
| Symmetry codes: (ii) −x+1, −y, −z+2; (iii) −x+1, −y+1, −z+1. |
Table 1
Selected geometric parameters (Å, °) top| Cu—N3 | 1.979 (3) | Cu—O1 | 2.583 (3) |
| Cu—N1 | 1.992 (4) | | |
| | | |
| N3—Cu—N3i | 180 | N1—Cu—O1i | 106.14 (13) |
| N3—Cu—N1 | 87.55 (15) | N3—Cu—O1 | 73.46 (12) |
| N3—Cu—N1i | 92.45 (15) | N1—Cu—O1 | 73.86 (13) |
| N1—Cu—N1i | 180 | O1i—Cu—O1 | 180 |
| N3—Cu—O1i | 106.54 (12) | | |
| Symmetry codes: (i) −x, −y+1, −z+1. |
Table 2
Hydrogen-bond geometry (Å, °) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| N2—H2N···O6ii | 0.87 (5) | 1.95 (4) | 2.709 (5) | 145 (6) |
| N2—H2N···O5ii | 0.87 (5) | 2.41 (5) | 3.104 (6) | 138 (6) |
| N4—H4N···O9iii | 0.87 (5) | 1.92 (2) | 2.753 (6) | 162 (5) |
| Symmetry codes: (ii) −x+1, −y, −z+2; (iii) −x+1, −y+1, −z+1. |
The authors acknowledge the financial support and grant from Qing Lan Talent
Engineering Funds (QL-05–03 A) of Lanzhou Jiaotong University. The
Middle-Young Age Science Foundation of Gansu Province (grant No.
3YS061-A25–023,24) is also acknowledged.
Higashi, T. (1995). ABSCOR. Rigaku Corporation, Tokyo, Japan.
Rigaku/MSC (2004). RAPID-AUTO. Rigaku/MSC, The Woodlands, Texas, USA.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122.
Spek, A. L. (2003). J. Appl. Cryst. 36, 7–13.
Zhou, H.-Q. & Yang, P. (2006). Huaxue Xuebao, 64, 793.
The asymmetric unit of the title compound consists of half of a di[1,3-bis(benzimidazol-2-yl)-2-oxopropane] copper(II) cation (Fig.1), one picrate anion and two molecules of DMF. The CuII ion is six-coordinated with a N4O2 ligand set. The obb (1,3-bis(benzimidazol-2-yl)-2-oxopropane) ligand acts as a tridentate donor. The coordination geometry of the CuII may be best described as distorted octahedral. This geometry is assumed by the CuII to relieve the steric crowding. The equatorial plane is occupied by four N atoms of two benzimidazolyl groups. The axial positions are occuppied two O atoms. The crystal structure is stabilized by intermolecular N-H···O hydrogen bonds.