Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536803013837/ob6256sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536803013837/ob6256Isup2.hkl |
CCDC reference: 217390
A solution of [PtCl(terpy)]Cl (0.1 mmol, 0.05 g; Howe-Grant & Lippard, 1980) in water (10 ml) and AgClO4 (0.2 mmol, 0.042 g) was refluxed in the dark for 2 h. To the solution was added MQ(ClO4) (0.1 mmol, 0.027 g; Sakai et al., 2003) and the mixture was further refluxed for 4 h. After the precipitated AgCl was removed by filtration, the filtrate was evaporated to a total volume of about 5 ml until a small amount of orange precipitate started to deposit. To the solution was then added 2–3 drops of an aqueous saturated sodium perchlorate solution. Leaving the solution to stand overnight afforded (I) as an orange precipitate. The product was finally recrystallized from hot water to give the final product as orange needles (yield: 51%). Analysis calculated for PtO12N5Cl3C26H22 (calculated as an anhydrous form): C, 34.78; H, 2.47; N, 7.80%; found: C, 35.79; H, 2.56; N, 7.48%. 1HNMR (D2O, 296 K): δ = 4.36 (s, 3H); 7.54–7.60 (m, 6H); 7.70 (d, 2H, J = 5.44 Hz); 8.24–8.42 (m, 8H); 8.41 (d, 2H, J = 6.93 Hz); 8.90 (d, 2H, J = 6.93 Hz); 9.28 p.p.m. (d, 2H, J = 6.76 Hz).
One of the three ClO4− anions shows orientational disorder. Around the Cl2 atom there are two sets of possible positions of (O5A, O6A, O7A, O8A) and (O5B, O6B, O7B, O8B). It was assumed that these disordered O atoms have the same isotropic displacement parameter. Furthermore, Cl—O distances were restrained to 1.43 Å and six O—O distances within each perchlorate ion were restrained to be equal. The site occupation factors for A and B converged at 41.9 (5) and 58.1 (5)%, respectively. A water molecule is also assumed to be disordered over two sites (O13A and O13B). These are assumed to have the same isotropic displacement parameter. The occupation factors of sites A and B converged at 33 (2) and 67 (2)%, respectively. All the H atoms except for those of the water molecule were located at idealized positions as riding atoms (C—H(methyl)=0.96 Å, C—H(aromatic)=0.93 Å). Water H atoms were not located. In the final difference Fourier synthesis, 8 residual peaks in the range 1.1–1.61 e Å−3 were observed within 0.99 Å of the Pt atom.
Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: KENX (Sakai, 2002); software used to prepare material for publication: SHELXL97, TEXSAN (Molecular Structure Corporation, 2001), KENX and ORTEP (Johnson, 1976).
[Pt(C15H11N3)(C11H11N2)](ClO4)3·H2O | F(000) = 896 |
Mr = 915.94 | ? # Insert any comments here. |
Triclinic, P1 | Dx = 1.974 Mg m−3 |
a = 10.2302 (8) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 13.4229 (11) Å | Cell parameters from 5125 reflections |
c = 13.6086 (11) Å | θ = 2.3–28.2° |
α = 62.287 (1)° | µ = 4.89 mm−1 |
β = 83.403 (1)° | T = 296 K |
γ = 68.990 (1)° | Needls, orange |
V = 1541.3 (2) Å3 | 0.2 × 0.09 × 0.03 mm |
Z = 2 |
Bruker SMART APEX CCD-detector diffractometer | 6948 independent reflections |
Radiation source: fine-focus sealed tube | 6193 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.067 |
Detector resolution: 8.366 pixels mm-1 | θmax = 28.3°, θmin = 1.8° |
ω scans | h = −13→13 |
Absorption correction: gaussian (XPREP in SAINT; Bruker, 2001) | k = −17→17 |
Tmin = 0.337, Tmax = 0.659 | l = −17→18 |
13736 measured reflections |
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)] = 0.033 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.089 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0448P)2] where P = (Fo2 + 2Fc2)/3 |
6948 reflections | (Δ/σ)max = 0.002 |
423 parameters | Δρmax = 1.40 e Å−3 |
38 restraints | Δρmin = −1.21 e Å−3 |
[Pt(C15H11N3)(C11H11N2)](ClO4)3·H2O | γ = 68.990 (1)° |
Mr = 915.94 | V = 1541.3 (2) Å3 |
Triclinic, P1 | Z = 2 |
a = 10.2302 (8) Å | Mo Kα radiation |
b = 13.4229 (11) Å | µ = 4.89 mm−1 |
c = 13.6086 (11) Å | T = 296 K |
α = 62.287 (1)° | 0.2 × 0.09 × 0.03 mm |
β = 83.403 (1)° |
Bruker SMART APEX CCD-detector diffractometer | 6948 independent reflections |
Absorption correction: gaussian (XPREP in SAINT; Bruker, 2001) | 6193 reflections with I > 2σ(I) |
Tmin = 0.337, Tmax = 0.659 | Rint = 0.067 |
13736 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | 38 restraints |
wR(F2) = 0.089 | H-atom parameters constrained |
S = 1.01 | Δρmax = 1.40 e Å−3 |
6948 reflections | Δρmin = −1.21 e Å−3 |
423 parameters |
Experimental. The first 50 frames were rescanned at the end of data collection to evaluate any possible decay phenomenon. Since it was judged to be negligible, no decay correction was applied to the data. |
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. Mean-plane data from final SHELXL refinement run:- Least-squares planes (x,y,z in crystal coordinates) and deviations from them (* indicates atom used to define plane) − 5.3674 (0.0126) x + 7.3962 (0.0159) y + 7.8329 (0.0163) z = 7.2121 (0.0241) * −0.0488 (0.0017) N1 * 0.0578 (0.0020) N2 * −0.0486 (0.0017) N3 * 0.0396 (0.0014) N4 0.0033 (0.0017) Pt1 Rms deviation of fitted atoms = 0.0491 − 5.3053 (0.0180) x + 8.0009 (0.0218) y + 6.4249 (0.0264) z = 6.8310 (0.0391) Angle to previous plane (with approximate e.s.d.) = 8.54 (0.30) * 0.0092 (0.0036) C1 * −0.0044 (0.0040) C2 * −0.0054 (0.0041) C3 * 0.0106 (0.0037) C4 * −0.0062 (0.0033) C5 * −0.0038 (0.0032) N1 3.4502 (0.0075) C1_$5 3.4638 (0.0080) C2_$5 3.4647 (0.0075) C3_$5 Rms deviation of fitted atoms = 0.0070 − 6.1161 (0.0159) x + 6.5315 (0.0225) y + 7.0797 (0.0233) z = 5.6155 (0.0386) Angle to previous plane (with approximate e.s.d.) = 9.21 (1/3) * −0.0066 (0.0032) C6 * −0.0033 (0.0036) C7 * 0.0087 (0.0037) C8 * −0.0046 (0.0035) C9 * −0.0052 (0.0032) C10 * 0.0110 (0.0030) N2 Rms deviation of fitted atoms = 0.0070 − 6.0816 (0.0176) x + 6.0830 (0.0250) y + 7.9334 (0.0240) z = 6.2250 (0.0352) Angle to previous plane (with approximate e.s.d.) = 5.56 (0.36) * −0.0065 (0.0033) C11 * 0.0110 (0.0037) C12 * −0.0044 (0.0040) C13 * −0.0067 (0.0039) C14 * 0.0116 (0.0034) C15 * −0.0049 (0.0030) N3 Rms deviation of fitted atoms = 0.0080 − 5.3053 (0.0180) x + 8.0009 (0.0218) y + 6.4249 (0.0264) z = 6.8310 (0.0391) Angle to previous plane (with approximate e.s.d.) = 14.15 (1/3) * 0.0092 (0.0036) C1 * −0.0044 (0.0040) C2 * −0.0054 (0.0041) C3 * 0.0106 (0.0037) C4 * −0.0062 (0.0033) C5 * −0.0038 (0.0032) N1 Rms deviation of fitted atoms = 0.0070 − 6.0816 (0.0176) x + 6.0830 (0.0250) y + 7.9334 (0.0240) z = 6.2250 (0.0352) Angle to previous plane (with approximate e.s.d.) = 14.15 (1/3) * −0.0065 (0.0033) C11 * 0.0110 (0.0037) C12 * −0.0044 (0.0040) C13 * −0.0067 (0.0039) C14 * 0.0116 (0.0034) C15 * −0.0049 (0.0030) N3 Rms deviation of fitted atoms = 0.0080 − 5.6135 (0.0153) x + 6.9539 (0.0229) y + 7.9081 (0.0163) z = 6.8763 (0.0276) Angle to previous plane (with approximate e.s.d.) = 4.44 (0.35) * 0.0148 (0.0007) N4 * −0.0303 (0.0015) Pt1 * 0.0155 (0.0008) N2 * 0.0001 (0.0000) N3 − 0.1674 (0.0060) N1 Rms deviation of fitted atoms = 0.0185 − 6.1161 (0.0159) x + 6.5315 (0.0225) y + 7.0797 (0.0233) z = 5.6155 (0.0386) Angle to previous plane (with approximate e.s.d.) = 4.31 (0.34) * −0.0066 (0.0032) C6 * −0.0033 (0.0036) C7 * 0.0087 (0.0037) C8 * −0.0046 (0.0035) C9 * −0.0052 (0.0032) C10 * 0.0110 (0.0030) N2 Rms deviation of fitted atoms = 0.0070 − 5.6135 (0.0153) x + 6.9539 (0.0229) y + 7.9081 (0.0163) z = 6.8763 (0.0276) Angle to previous plane (with approximate e.s.d.) = 4.31 (0.34) * 0.0148 (0.0007) N4 * −0.0303 (0.0015) Pt1 * 0.0155 (0.0008) N2 * 0.0001 (0.0000) N3 − 0.1674 (0.0060) N1 Rms deviation of fitted atoms = 0.0185 − 6.1161 (0.0159) x + 6.5315 (0.0225) y + 7.0797 (0.0233) z = 5.6155 (0.0386) Angle to previous plane (with approximate e.s.d.) = 4.31 (0.34) * −0.0066 (0.0032) C6 * −0.0033 (0.0036) C7 * 0.0087 (0.0037) C8 * −0.0046 (0.0035) C9 * −0.0052 (0.0032) C10 * 0.0110 (0.0030) N2 Rms deviation of fitted atoms = 0.0070 − 5.6135 (0.0153) x + 6.9539 (0.0229) y + 7.9081 (0.0163) z = 6.8763 (0.0276) Angle to previous plane (with approximate e.s.d.) = 4.31 (0.34) * 0.0148 (0.0007) N4 * −0.0303 (0.0015) Pt1 * 0.0155 (0.0008) N2 * 0.0001 (0.0000) N3 − 0.1674 (0.0060) N1 Rms deviation of fitted atoms = 0.0185 − 6.0816 (0.0176) x + 6.0830 (0.0250) y + 7.9334 (0.0240) z = 6.2250 (0.0352) Angle to previous plane (with approximate e.s.d.) = 4.44 (0.35) * −0.0065 (0.0033) C11 * 0.0110 (0.0037) C12 * −0.0044 (0.0040) C13 * −0.0067 (0.0039) C14 * 0.0116 (0.0034) C15 * −0.0049 (0.0030) N3 Rms deviation of fitted atoms = 0.0080 − 5.6135 (0.0153) x + 6.9539 (0.0229) y + 7.9081 (0.0163) z = 6.8763 (0.0276) Angle to previous plane (with approximate e.s.d.) = 4.44 (0.35) * 0.0148 (0.0007) N4 * −0.0303 (0.0015) Pt1 * 0.0155 (0.0008) N2 * 0.0001 (0.0000) N3 − 0.1674 (0.0060) N1 0.0454 (0.0069) C6 0.1519 (0.0086) C7 0.2147 (0.0090) C8 0.1518 (0.0078) C9 0.0472 (0.0061) C10 − 0.0058 (0.0066) C11 − 0.0826 (0.0090) C12 − 0.1887 (0.0107) C13 − 0.1857 (0.0100) C14 − 0.0720 (0.0075) C15 Rms deviation of fitted atoms = 0.0185 − 6.0316 (0.0063) x + 6.4222 (0.0082) y + 7.5647 (0.0153) z = 6.0473 (0.0174) Angle to previous plane (with approximate e.s.d.) = 2.85 (0.26) * −0.0724 (0.0037) C6 * −0.0201 (0.0044) C7 * 0.0533 (0.0044) C8 * 0.0536 (0.0043) C9 * 0.0025 (0.0042) C10 * −0.0413 (0.0034) N2 * 0.0203 (0.0044) C11 * −0.0317 (0.0046) C12 * −0.0698 (0.0047) C13 * −0.0247 (0.0047) C14 * 0.0624 (0.0039) C15 * 0.0681 (0.0035) N3 Rms deviation of fitted atoms = 0.0487 − 5.6135 (0.0153) x + 6.9539 (0.0229) y + 7.9081 (0.0163) z = 6.8763 (0.0276) Angle to previous plane (with approximate e.s.d.) = 2.85 (0.26) * 0.0148 (0.0007) N4 * −0.0303 (0.0015) Pt1 * 0.0155 (0.0008) N2 * 0.0001 (0.0000) N3 − 0.1674 (0.0060) N1 Rms deviation of fitted atoms = 0.0185 4.2032 (0.0195) x + 11.0567 (0.0165) y − 1.5336 (0.0284) z = 8.4017 (0.0261) Angle to previous plane (with approximate e.s.d.) = 81.74 (0.14) * −0.0018 (0.0035) C16 * −0.0042 (0.0035) C17 * 0.0111 (0.0035) C18 * −0.0123 (0.0041) C19 * 0.0064 (0.0041) C20 * 0.0008 (0.0034) N4 Rms deviation of fitted atoms = 0.0075 0.6563 (0.0215) x + 12.6263 (0.0088) y + 4.1061 (0.0260) z = 10.9862 (0.0114) Angle to previous plane (with approximate e.s.d.) = 33.51 (0.18) * −0.0065 (0.0038) C21 * 0.0029 (0.0038) C22 * 0.0019 (0.0033) C23 * −0.0032 (0.0034) C24 * −0.0003 (0.0034) C25 * 0.0053 (0.0033) N5 Rms deviation of fitted atoms = 0.0039 − 5.7297 (0.0121) x + 7.2711 (0.0151) y + 6.8246 (0.0120) z = 6.1259 (0.0269) Angle to previous plane (with approximate e.s.d.) = 45.08 (0.14) * 0.0284 (0.0042) C1 * −0.0930 (0.0049) C2 * −0.1118 (0.0047) C3 * −0.0039 (0.0045) C4 * 0.0874 (0.0044) C5 * 0.0827 (0.0043) C6 * 0.0845 (0.0045) C7 * 0.0038 (0.0045) C8 * −0.0999 (0.0042) C9 * −0.0963 (0.0037) C10 * 0.1060 (0.0036) N1 * 0.0121 (0.0035) N2 Rms deviation of fitted atoms = 0.0787 − 6.0316 (0.0063) x + 6.4222 (0.0082) y + 7.5647 (0.0153) z = 6.0473 (0.0174) Angle to previous plane (with approximate e.s.d.) = 6.53 (0.19) * −0.0725 (0.0037) C6 * −0.0201 (0.0044) C7 * 0.0533 (0.0044) C8 * 0.0536 (0.0043) C9 * 0.0025 (0.0042) C10 * 0.0203 (0.0044) C11 * −0.0317 (0.0046) C12 * −0.0698 (0.0047) C13 * −0.0247 (0.0047) C14 * 0.0624 (0.0039) C15 * −0.0413 (0.0034) N2 * 0.0681 (0.0035) N3 Rms deviation of fitted atoms = 0.0487 − 6.0823 (0.0056) x + 6.7543 (0.0065) y + 6.6993 (0.0092) z = 5.3936 (0.0139) Angle to previous plane (with approximate e.s.d.) = 5.20 (0.12) * 0.0421 (0.0046) C1 * −0.1384 (0.0049) C2 * −0.2005 (0.0051) C3 * −0.0744 (0.0048) C4 * 0.0776 (0.0043) C5 * 0.0975 (0.0043) C6 * 0.0683 (0.0046) C7 * 0.0202 (0.0046) C8 * −0.0213 (0.0044) C9 * 0.0121 (0.0042) C10 * 0.0096 (0.0043) C11 * −0.1563 (0.0048) C12 * −0.2052 (0.0051) C13 * −0.0567 (0.0048) C14 * 0.1415 (0.0043) C15 * 0.1382 (0.0038) N1 * 0.0873 (0.0036) N2 * 0.1582 (0.0036) N3 Rms deviation of fitted atoms = 0.1129 − 6.1342 (0.0100) x + 6.1695 (0.0160) y + 7.6621 (0.0359) z = 5.9661 (0.0360) Angle to previous plane (with approximate e.s.d.) = 6.48 (1/5) * −0.0040 (0.0036) C8 * 0.0256 (0.0041) C9 * −0.0302 (0.0037) C10 * 0.0139 (0.0040) C11 * −0.0025 (0.0043) C12 * −0.0175 (0.0039) C13 * 0.0147 (0.0035) C14 3.4313 (0.0056) C8_$4 3.4017 (0.0055) C9_$4 3.4575 (0.0053) C10_$4 3.4134 (0.0054) C11_$4 3.4298 (0.0056) C12_$4 3.4448 (0.0056) C13_$4 3.4126 (0.0053) C14_$4 Rms deviation of fitted atoms = 0.0182 − 5.6135 (0.0153) x + 6.9539 (0.0229) y + 7.9081 (0.0163) z = 6.8763 (0.0276) Angle to previous plane (with approximate e.s.d.) = 3.85 (0.31) * 0.0148 (0.0007) N4 * −0.0303 (0.0015) Pt1 * 0.0155 (0.0008) N2 * 0.0001 (0.0000) N3 − 0.1674 (0.0060) N1 Rms deviation of fitted atoms = 0.0185 4.2032 (0.0195) x + 11.0567 (0.0165) y − 1.5336 (0.0284) z = 8.4017 (0.0261) Angle to previous plane (with approximate e.s.d.) = 81.74 (0.14) * −0.0018 (0.0035) C16 * −0.0042 (0.0035) C17 * 0.0111 (0.0035) C18 * −0.0123 (0.0041) C19 * 0.0064 (0.0041) C20 * 0.0008 (0.0034) N4 Rms deviation of fitted atoms = 0.0075 |
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 | Occ. (<1) | |
Pt1 | 0.550368 (15) | 0.646105 (14) | 0.688224 (13) | 0.03936 (7) | |
Cl1 | 0.10301 (12) | 0.88258 (10) | 0.78862 (10) | 0.0510 (3) | |
Cl2 | 0.44157 (15) | 0.96172 (14) | 0.19842 (13) | 0.0689 (4) | |
Cl3 | 1.06173 (15) | 0.51272 (12) | 0.71701 (12) | 0.0598 (3) | |
O1 | 0.2375 (5) | 0.8271 (5) | 0.7600 (4) | 0.1009 (18) | |
O2 | 0.0516 (6) | 0.7918 (5) | 0.8633 (6) | 0.127 (2) | |
O3 | 0.1190 (7) | 0.9404 (4) | 0.8469 (5) | 0.1076 (18) | |
O4 | 0.0145 (5) | 0.9636 (5) | 0.6910 (4) | 0.0960 (15) | |
O5A | 0.3246 (11) | 0.9568 (13) | 0.2581 (11) | 0.1195 (14)* | 0.419 (5) |
O5B | 0.3737 (10) | 0.9435 (10) | 0.3006 (7) | 0.1195 (14)* | 0.581 (5) |
O6A | 0.4343 (14) | 1.0002 (13) | 0.0827 (7) | 0.1195 (14)* | 0.419 (5) |
O6B | 0.4107 (10) | 0.9064 (9) | 0.1428 (8) | 0.1195 (14)* | 0.581 (5) |
O7A | 0.4950 (14) | 1.0423 (11) | 0.2121 (12) | 0.1195 (14)* | 0.419 (5) |
O7B | 0.3655 (10) | 1.0902 (7) | 0.1223 (8) | 0.1195 (14)* | 0.581 (5) |
O8A | 0.5558 (11) | 0.8464 (9) | 0.2469 (11) | 0.1195 (14)* | 0.419 (5) |
O8B | 0.5755 (8) | 0.9592 (10) | 0.2064 (9) | 0.1195 (14)* | 0.581 (5) |
O9 | 0.9693 (6) | 0.5924 (5) | 0.6208 (4) | 0.1035 (17) | |
O10 | 1.1830 (5) | 0.4397 (5) | 0.6923 (6) | 0.1098 (19) | |
O11 | 0.9898 (6) | 0.4407 (5) | 0.8013 (5) | 0.0963 (15) | |
O12 | 1.1000 (6) | 0.5833 (4) | 0.7541 (4) | 0.0888 (14) | |
O13A | 0.7821 (19) | 0.594 (3) | 0.494 (2) | 0.105 (2)* | 0.327 (18) |
O13B | 0.7882 (9) | 0.5310 (13) | 0.5341 (10) | 0.105 (2)* | 0.673 (18) |
N1 | 0.6237 (4) | 0.7830 (3) | 0.6026 (3) | 0.0447 (8) | |
N2 | 0.6717 (4) | 0.6183 (4) | 0.8046 (3) | 0.0437 (8) | |
N3 | 0.5273 (4) | 0.4936 (3) | 0.8098 (3) | 0.0454 (9) | |
N4 | 0.4159 (4) | 0.6806 (3) | 0.5681 (3) | 0.0421 (8) | |
N5 | −0.0659 (4) | 0.8239 (3) | 0.1539 (3) | 0.0481 (9) | |
C1 | 0.6037 (6) | 0.8590 (5) | 0.4934 (5) | 0.0562 (12) | |
H1 | 0.5426 | 0.8553 | 0.4505 | 0.067* | |
C2 | 0.6689 (6) | 0.9411 (5) | 0.4429 (6) | 0.0686 (16) | |
H2 | 0.6541 | 0.9914 | 0.3667 | 0.082* | |
C3 | 0.7579 (6) | 0.9488 (5) | 0.5067 (6) | 0.0752 (19) | |
H3 | 0.8039 | 1.0040 | 0.4741 | 0.090* | |
C4 | 0.7769 (5) | 0.8732 (5) | 0.6190 (6) | 0.0621 (14) | |
H4 | 0.8344 | 0.8785 | 0.6633 | 0.075* | |
C5 | 0.7109 (5) | 0.7894 (4) | 0.6662 (5) | 0.0502 (11) | |
C6 | 0.7345 (5) | 0.6973 (5) | 0.7835 (4) | 0.0489 (11) | |
C7 | 0.8147 (5) | 0.6822 (6) | 0.8672 (5) | 0.0633 (15) | |
H7 | 0.8589 | 0.7364 | 0.8546 | 0.076* | |
C8 | 0.8280 (6) | 0.5854 (6) | 0.9697 (5) | 0.0670 (16) | |
H8 | 0.8807 | 0.5753 | 1.0271 | 0.080* | |
C9 | 0.7654 (5) | 0.5028 (5) | 0.9900 (5) | 0.0598 (14) | |
H9 | 0.7768 | 0.4368 | 1.0595 | 0.072* | |
C10 | 0.6851 (5) | 0.5208 (4) | 0.9039 (4) | 0.0481 (11) | |
C11 | 0.6065 (5) | 0.4490 (4) | 0.9045 (4) | 0.0495 (11) | |
C12 | 0.6119 (6) | 0.3404 (5) | 0.9941 (5) | 0.0629 (14) | |
H12 | 0.6643 | 0.3114 | 1.0593 | 0.076* | |
C13 | 0.5386 (7) | 0.2754 (5) | 0.9858 (6) | 0.0745 (18) | |
H13 | 0.5430 | 0.2015 | 1.0447 | 0.089* | |
C14 | 0.4587 (6) | 0.3216 (5) | 0.8888 (6) | 0.0656 (16) | |
H14 | 0.4091 | 0.2789 | 0.8818 | 0.079* | |
C15 | 0.4534 (5) | 0.4315 (5) | 0.8029 (5) | 0.0539 (12) | |
H15 | 0.3976 | 0.4635 | 0.7386 | 0.065* | |
C16 | 0.2769 (5) | 0.7337 (4) | 0.5716 (4) | 0.0490 (11) | |
H16 | 0.2449 | 0.7538 | 0.6290 | 0.059* | |
C17 | 0.1811 (5) | 0.7590 (4) | 0.4928 (4) | 0.0467 (10) | |
H17 | 0.0859 | 0.7948 | 0.4980 | 0.056* | |
C18 | 0.2257 (4) | 0.7314 (4) | 0.4059 (4) | 0.0415 (9) | |
C19 | 0.3674 (5) | 0.6752 (5) | 0.4041 (5) | 0.0547 (12) | |
H19 | 0.4008 | 0.6522 | 0.3486 | 0.066* | |
C20 | 0.4603 (5) | 0.6526 (5) | 0.4841 (5) | 0.0569 (13) | |
H20 | 0.5559 | 0.6172 | 0.4799 | 0.068* | |
C21 | 0.0649 (5) | 0.8244 (5) | 0.1287 (4) | 0.0548 (12) | |
H21 | 0.0905 | 0.8456 | 0.0557 | 0.066* | |
C22 | 0.1602 (5) | 0.7942 (5) | 0.2085 (4) | 0.0540 (12) | |
H22 | 0.2498 | 0.7962 | 0.1896 | 0.065* | |
C23 | 0.1244 (5) | 0.7604 (4) | 0.3178 (4) | 0.0435 (10) | |
C24 | −0.0106 (5) | 0.7592 (4) | 0.3419 (4) | 0.0477 (10) | |
H24 | −0.0383 | 0.7367 | 0.4144 | 0.057* | |
C25 | −0.1033 (5) | 0.7916 (4) | 0.2577 (4) | 0.0505 (11) | |
H25 | −0.1939 | 0.7909 | 0.2739 | 0.061* | |
C26 | −0.1682 (6) | 0.8616 (6) | 0.0630 (5) | 0.0666 (15) | |
H26A | −0.1187 | 0.8462 | 0.0044 | 0.100* | |
H26B | −0.2209 | 0.9457 | 0.0345 | 0.100* | |
H26C | −0.2309 | 0.8170 | 0.0916 | 0.100* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Pt1 | 0.03931 (10) | 0.04587 (11) | 0.03541 (11) | −0.01474 (7) | −0.00305 (6) | −0.01939 (8) |
Cl1 | 0.0555 (6) | 0.0493 (6) | 0.0505 (7) | −0.0212 (5) | −0.0006 (5) | −0.0215 (5) |
Cl2 | 0.0690 (8) | 0.0795 (9) | 0.0614 (9) | −0.0298 (7) | 0.0009 (7) | −0.0310 (7) |
Cl3 | 0.0681 (8) | 0.0620 (7) | 0.0511 (7) | −0.0208 (6) | −0.0014 (6) | −0.0275 (6) |
O1 | 0.076 (3) | 0.140 (5) | 0.066 (3) | −0.004 (3) | 0.005 (2) | −0.056 (3) |
O2 | 0.114 (4) | 0.105 (4) | 0.142 (6) | −0.075 (4) | −0.001 (4) | −0.011 (4) |
O3 | 0.173 (5) | 0.073 (3) | 0.086 (4) | −0.036 (3) | −0.020 (4) | −0.043 (3) |
O4 | 0.086 (3) | 0.102 (4) | 0.075 (3) | −0.018 (3) | −0.026 (2) | −0.025 (3) |
O9 | 0.119 (4) | 0.103 (4) | 0.067 (3) | −0.033 (3) | −0.026 (3) | −0.019 (3) |
O10 | 0.078 (3) | 0.120 (4) | 0.168 (6) | −0.028 (3) | 0.012 (3) | −0.100 (4) |
O11 | 0.129 (4) | 0.085 (3) | 0.086 (4) | −0.058 (3) | 0.017 (3) | −0.035 (3) |
O12 | 0.123 (4) | 0.094 (3) | 0.082 (3) | −0.059 (3) | 0.015 (3) | −0.052 (3) |
N1 | 0.0456 (19) | 0.0450 (19) | 0.045 (2) | −0.0176 (16) | 0.0011 (16) | −0.0199 (17) |
N2 | 0.0384 (18) | 0.057 (2) | 0.038 (2) | −0.0132 (16) | −0.0026 (15) | −0.0257 (18) |
N3 | 0.0433 (19) | 0.046 (2) | 0.046 (2) | −0.0142 (16) | 0.0054 (16) | −0.0216 (17) |
N4 | 0.0470 (19) | 0.0442 (19) | 0.036 (2) | −0.0129 (16) | −0.0051 (15) | −0.0194 (16) |
N5 | 0.050 (2) | 0.051 (2) | 0.045 (2) | −0.0136 (17) | −0.0112 (17) | −0.0236 (18) |
C1 | 0.061 (3) | 0.057 (3) | 0.048 (3) | −0.021 (2) | 0.003 (2) | −0.021 (2) |
C2 | 0.076 (4) | 0.056 (3) | 0.066 (4) | −0.025 (3) | 0.019 (3) | −0.023 (3) |
C3 | 0.073 (4) | 0.062 (3) | 0.101 (6) | −0.035 (3) | 0.032 (4) | −0.043 (4) |
C4 | 0.053 (3) | 0.069 (3) | 0.087 (4) | −0.031 (3) | 0.014 (3) | −0.048 (3) |
C5 | 0.049 (2) | 0.054 (3) | 0.060 (3) | −0.020 (2) | 0.008 (2) | −0.036 (2) |
C6 | 0.040 (2) | 0.067 (3) | 0.053 (3) | −0.019 (2) | 0.003 (2) | −0.038 (2) |
C7 | 0.044 (3) | 0.101 (4) | 0.068 (4) | −0.023 (3) | 0.001 (2) | −0.058 (4) |
C8 | 0.049 (3) | 0.103 (5) | 0.060 (4) | −0.013 (3) | −0.007 (2) | −0.054 (4) |
C9 | 0.047 (3) | 0.080 (4) | 0.045 (3) | −0.005 (2) | −0.007 (2) | −0.033 (3) |
C10 | 0.042 (2) | 0.058 (3) | 0.038 (2) | −0.006 (2) | −0.0015 (18) | −0.025 (2) |
C11 | 0.043 (2) | 0.055 (3) | 0.042 (3) | −0.008 (2) | 0.0004 (19) | −0.021 (2) |
C12 | 0.058 (3) | 0.055 (3) | 0.052 (3) | −0.010 (2) | 0.006 (2) | −0.014 (2) |
C13 | 0.072 (4) | 0.054 (3) | 0.075 (4) | −0.019 (3) | 0.022 (3) | −0.017 (3) |
C14 | 0.064 (3) | 0.053 (3) | 0.082 (5) | −0.030 (3) | 0.021 (3) | −0.030 (3) |
C15 | 0.051 (3) | 0.062 (3) | 0.061 (3) | −0.023 (2) | 0.010 (2) | −0.036 (3) |
C16 | 0.044 (2) | 0.060 (3) | 0.046 (3) | −0.013 (2) | −0.0032 (19) | −0.029 (2) |
C17 | 0.041 (2) | 0.062 (3) | 0.039 (2) | −0.013 (2) | −0.0021 (18) | −0.027 (2) |
C18 | 0.042 (2) | 0.046 (2) | 0.036 (2) | −0.0158 (18) | −0.0036 (17) | −0.0168 (19) |
C19 | 0.050 (3) | 0.075 (3) | 0.048 (3) | −0.011 (2) | 0.000 (2) | −0.042 (3) |
C20 | 0.041 (2) | 0.080 (4) | 0.061 (3) | −0.012 (2) | 0.000 (2) | −0.047 (3) |
C21 | 0.061 (3) | 0.069 (3) | 0.037 (3) | −0.021 (3) | 0.000 (2) | −0.026 (2) |
C22 | 0.047 (2) | 0.075 (3) | 0.043 (3) | −0.021 (2) | 0.001 (2) | −0.029 (2) |
C23 | 0.049 (2) | 0.046 (2) | 0.039 (2) | −0.0141 (19) | −0.0056 (18) | −0.0209 (19) |
C24 | 0.050 (2) | 0.054 (3) | 0.040 (3) | −0.022 (2) | 0.0001 (19) | −0.019 (2) |
C25 | 0.047 (2) | 0.055 (3) | 0.048 (3) | −0.020 (2) | −0.004 (2) | −0.019 (2) |
C26 | 0.061 (3) | 0.087 (4) | 0.052 (3) | −0.019 (3) | −0.019 (2) | −0.033 (3) |
Pt1—N2 | 1.938 (4) | C7—C8 | 1.373 (9) |
Pt1—N3 | 2.022 (4) | C8—C9 | 1.378 (9) |
Pt1—N1 | 2.024 (4) | C9—C10 | 1.386 (7) |
Pt1—N4 | 2.033 (4) | C10—C11 | 1.457 (7) |
Pt1—Pt1i | 7.6411 (7) | C11—C12 | 1.385 (7) |
Pt1—Pt1ii | 8.1543 (7) | C12—C13 | 1.384 (9) |
Cl1—O3 | 1.397 (5) | C13—C14 | 1.385 (10) |
Cl1—O2 | 1.407 (5) | C14—C15 | 1.378 (8) |
Cl1—O4 | 1.412 (5) | C16—C17 | 1.375 (6) |
Cl1—O1 | 1.418 (5) | C17—C18 | 1.381 (6) |
Cl2—O5A | 1.370 (8) | C18—C19 | 1.377 (7) |
Cl2—O8B | 1.374 (7) | C18—C23 | 1.490 (6) |
Cl2—O6B | 1.404 (7) | C19—C20 | 1.381 (7) |
Cl2—O6A | 1.413 (8) | C21—C22 | 1.358 (7) |
Cl2—O5B | 1.435 (7) | C22—C23 | 1.386 (7) |
Cl2—O8A | 1.458 (8) | C23—C24 | 1.387 (6) |
Cl2—O7A | 1.462 (8) | C24—C25 | 1.375 (7) |
Cl2—O7B | 1.488 (7) | C1—H1 | 0.9300 |
Cl3—O10 | 1.397 (5) | C2—H2 | 0.9300 |
Cl3—O9 | 1.418 (5) | C3—H3 | 0.9300 |
Cl3—O12 | 1.436 (5) | C4—H4 | 0.9300 |
Cl3—O11 | 1.441 (5) | C7—H7 | 0.9300 |
N1—C1 | 1.341 (6) | C8—H8 | 0.9300 |
N1—C5 | 1.362 (6) | C9—H9 | 0.9300 |
N2—C6 | 1.336 (6) | C12—H12 | 0.9300 |
N2—C10 | 1.351 (6) | C13—H13 | 0.9300 |
N3—C15 | 1.348 (6) | C14—H14 | 0.9300 |
N3—C11 | 1.361 (6) | C15—H15 | 0.9300 |
N4—C20 | 1.346 (6) | C16—H16 | 0.9300 |
N4—C16 | 1.350 (6) | C17—H17 | 0.9300 |
N5—C25 | 1.325 (6) | C19—H19 | 0.9300 |
N5—C21 | 1.344 (6) | C20—H20 | 0.9300 |
N5—C26 | 1.488 (6) | C21—H21 | 0.9300 |
C1—C2 | 1.361 (8) | C22—H22 | 0.9300 |
C2—C3 | 1.388 (10) | C24—H24 | 0.9300 |
C3—C4 | 1.374 (9) | C25—H25 | 0.9300 |
C4—C5 | 1.381 (7) | C26—H26A | 0.9600 |
C5—C6 | 1.474 (7) | C26—H26B | 0.9600 |
C6—C7 | 1.375 (7) | C26—H26C | 0.9600 |
N2—Pt1—N3 | 81.05 (17) | N3—C11—C12 | 120.7 (5) |
N2—Pt1—N1 | 80.58 (17) | N3—C11—C10 | 116.0 (4) |
N3—Pt1—N1 | 161.30 (17) | C12—C11—C10 | 123.3 (5) |
N2—Pt1—N4 | 177.35 (13) | C13—C12—C11 | 119.5 (6) |
N3—Pt1—N4 | 99.26 (16) | C12—C13—C14 | 119.2 (5) |
N1—Pt1—N4 | 99.25 (16) | C15—C14—C13 | 119.3 (6) |
N2—Pt1—Pt1i | 54.13 (12) | N3—C15—C14 | 121.6 (5) |
N3—Pt1—Pt1i | 39.78 (12) | N4—C16—C17 | 122.0 (5) |
N1—Pt1—Pt1i | 127.25 (12) | C16—C17—C18 | 120.2 (4) |
N4—Pt1—Pt1i | 124.70 (11) | C19—C18—C17 | 117.4 (4) |
O3—Cl1—O2 | 106.4 (4) | C19—C18—C23 | 121.3 (4) |
O3—Cl1—O4 | 111.7 (3) | C17—C18—C23 | 121.4 (4) |
O2—Cl1—O4 | 112.7 (3) | C18—C19—C20 | 120.6 (5) |
O3—Cl1—O1 | 108.2 (4) | N4—C20—C19 | 121.6 (4) |
O2—Cl1—O1 | 108.1 (4) | N5—C21—C22 | 120.7 (5) |
O4—Cl1—O1 | 109.4 (3) | C21—C22—C23 | 120.3 (5) |
O8B—Cl2—O6B | 121.2 (6) | C22—C23—C24 | 117.8 (4) |
O5A—Cl2—O6A | 120.8 (7) | C22—C23—C18 | 121.1 (4) |
O8B—Cl2—O5B | 111.6 (6) | C24—C23—C18 | 121.0 (4) |
O6B—Cl2—O5B | 114.2 (6) | C25—C24—C23 | 119.5 (5) |
O5A—Cl2—O8A | 110.8 (7) | N5—C25—C24 | 121.2 (4) |
O6A—Cl2—O8A | 106.7 (7) | N1—C1—H1 | 118.6 |
O5A—Cl2—O7A | 108.1 (7) | C2—C1—H1 | 118.6 |
O6A—Cl2—O7A | 105.5 (7) | C1—C2—H2 | 120.5 |
O8A—Cl2—O7A | 103.5 (7) | C3—C2—H2 | 120.5 |
O8B—Cl2—O7B | 102.7 (6) | C4—C3—H3 | 120.6 |
O6B—Cl2—O7B | 100.6 (6) | C2—C3—H3 | 120.6 |
O5B—Cl2—O7B | 103.3 (6) | C3—C4—H4 | 119.9 |
O10—Cl3—O9 | 110.5 (4) | C5—C4—H4 | 119.9 |
O10—Cl3—O12 | 108.9 (3) | C8—C7—H7 | 120.7 |
O9—Cl3—O12 | 108.0 (3) | C6—C7—H7 | 120.7 |
O10—Cl3—O11 | 110.4 (3) | C7—C8—H8 | 119.1 |
O9—Cl3—O11 | 108.5 (3) | C9—C8—H8 | 119.1 |
O12—Cl3—O11 | 110.5 (3) | C8—C9—H9 | 120.9 |
C1—N1—C5 | 118.9 (4) | C10—C9—H9 | 120.9 |
C1—N1—Pt1 | 127.9 (4) | C13—C12—H12 | 120.3 |
C5—N1—Pt1 | 113.0 (3) | C11—C12—H12 | 120.3 |
C6—N2—C10 | 123.6 (4) | C12—C13—H13 | 120.4 |
C6—N2—Pt1 | 118.6 (3) | C14—C13—H13 | 120.4 |
C10—N2—Pt1 | 117.7 (3) | C15—C14—H14 | 120.4 |
C15—N3—C11 | 119.7 (4) | C13—C14—H14 | 120.4 |
C15—N3—Pt1 | 127.6 (4) | N3—C15—H15 | 119.2 |
C11—N3—Pt1 | 112.6 (3) | C14—C15—H15 | 119.2 |
C20—N4—C16 | 118.1 (4) | N4—C16—H16 | 119.0 |
C20—N4—Pt1 | 122.4 (3) | C17—C16—H16 | 119.0 |
C16—N4—Pt1 | 119.5 (3) | C16—C17—H17 | 119.9 |
C25—N5—C21 | 120.5 (4) | C18—C17—H17 | 119.9 |
C25—N5—C26 | 120.7 (4) | C18—C19—H19 | 119.7 |
C21—N5—C26 | 118.9 (4) | C20—C19—H19 | 119.7 |
N1—C1—C2 | 122.7 (6) | N4—C20—H20 | 119.2 |
C1—C2—C3 | 119.0 (6) | C19—C20—H20 | 119.2 |
C4—C3—C2 | 118.8 (5) | N5—C21—H21 | 119.6 |
C3—C4—C5 | 120.1 (6) | C22—C21—H21 | 119.6 |
N1—C5—C4 | 120.4 (5) | C21—C22—H22 | 119.8 |
N1—C5—C6 | 115.3 (4) | C23—C22—H22 | 119.8 |
C4—C5—C6 | 124.2 (5) | C25—C24—H24 | 120.3 |
N2—C6—C7 | 119.2 (5) | C23—C24—H24 | 120.3 |
N2—C6—C5 | 112.2 (4) | N5—C25—H25 | 119.4 |
C7—C6—C5 | 128.5 (5) | C24—C25—H25 | 119.4 |
C8—C7—C6 | 118.5 (6) | N5—C26—H26A | 109.5 |
C7—C8—C9 | 121.9 (5) | N5—C26—H26B | 109.5 |
C8—C9—C10 | 118.1 (5) | H26A—C26—H26B | 109.5 |
N2—C10—C9 | 118.6 (5) | N5—C26—H26C | 109.5 |
N2—C10—C11 | 112.6 (4) | H26A—C26—H26C | 109.5 |
C9—C10—C11 | 128.8 (5) | H26B—C26—H26C | 109.5 |
C5—N1—C1—C2 | 1.2 (8) | N3—C11—C12—C13 | 1.7 (8) |
N1—C1—C2—C3 | −1.3 (9) | C10—C11—C12—C13 | −177.2 (5) |
C1—C2—C3—C4 | −0.1 (9) | C11—C12—C13—C14 | −1.4 (8) |
C2—C3—C4—C5 | 1.6 (9) | C12—C13—C14—C15 | −0.2 (9) |
C1—N1—C5—C4 | 0.3 (7) | C11—N3—C15—C14 | −1.6 (7) |
C1—N1—C5—C6 | −175.9 (4) | C13—C14—C15—N3 | 1.8 (8) |
C3—C4—C5—N1 | −1.7 (8) | C20—N4—C16—C17 | 0.3 (7) |
C3—C4—C5—C6 | 174.2 (5) | N4—C16—C17—C18 | −0.7 (8) |
C10—N2—C6—C7 | −1.9 (7) | C16—C17—C18—C19 | 1.9 (7) |
C10—N2—C6—C5 | 175.4 (4) | C16—C17—C18—C23 | −178.5 (4) |
N1—C5—C6—N2 | 4.0 (6) | C17—C18—C19—C20 | −2.7 (8) |
C4—C5—C6—N2 | −172.1 (4) | C23—C18—C19—C20 | 177.7 (5) |
N1—C5—C6—C7 | −179.0 (5) | C16—N4—C20—C19 | −1.1 (8) |
C4—C5—C6—C7 | 4.9 (8) | C18—C19—C20—N4 | 2.3 (9) |
N2—C6—C7—C8 | 0.4 (7) | C25—N5—C21—C22 | −1.3 (8) |
C5—C6—C7—C8 | −176.4 (5) | C26—N5—C21—C22 | 178.0 (5) |
C6—C7—C8—C9 | 1.1 (8) | N5—C21—C22—C23 | 1.1 (8) |
C7—C8—C9—C10 | −1.2 (8) | C21—C22—C23—C24 | −0.3 (8) |
C6—N2—C10—C9 | 1.8 (7) | C21—C22—C23—C18 | −177.7 (5) |
C6—N2—C10—C11 | −179.6 (4) | C19—C18—C23—C22 | −35.2 (7) |
C8—C9—C10—N2 | −0.2 (7) | C17—C18—C23—C22 | 145.2 (5) |
C8—C9—C10—C11 | −178.5 (5) | C19—C18—C23—C24 | 147.4 (5) |
C15—N3—C11—C12 | −0.1 (7) | C17—C18—C23—C24 | −32.1 (7) |
C15—N3—C11—C10 | 178.8 (4) | C22—C23—C24—C25 | −0.3 (7) |
N2—C10—C11—N3 | −3.6 (6) | C18—C23—C24—C25 | 177.1 (4) |
C9—C10—C11—N3 | 174.8 (5) | C21—N5—C25—C24 | 0.7 (7) |
N2—C10—C11—C12 | 175.2 (4) | C26—N5—C25—C24 | −178.6 (5) |
C9—C10—C11—C12 | −6.3 (8) | C23—C24—C25—N5 | 0.1 (7) |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) −x+1, −y+2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Pt(C15H11N3)(C11H11N2)](ClO4)3·H2O |
Mr | 915.94 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 10.2302 (8), 13.4229 (11), 13.6086 (11) |
α, β, γ (°) | 62.287 (1), 83.403 (1), 68.990 (1) |
V (Å3) | 1541.3 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 4.89 |
Crystal size (mm) | 0.2 × 0.09 × 0.03 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD-detector diffractometer |
Absorption correction | Gaussian (XPREP in SAINT; Bruker, 2001) |
Tmin, Tmax | 0.337, 0.659 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13736, 6948, 6193 |
Rint | 0.067 |
(sin θ/λ)max (Å−1) | 0.667 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.089, 1.01 |
No. of reflections | 6948 |
No. of parameters | 423 |
No. of restraints | 38 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 1.40, −1.21 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SAINT, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), KENX (Sakai, 2002), SHELXL97, TEXSAN (Molecular Structure Corporation, 2001), KENX and ORTEP (Johnson, 1976).
Pt1—N2 | 1.938 (4) | Pt1—N4 | 2.033 (4) |
Pt1—N3 | 2.022 (4) | Pt1—Pt1i | 7.6411 (7) |
Pt1—N1 | 2.024 (4) | Pt1—Pt1ii | 8.1543 (7) |
N2—Pt1—N3 | 81.05 (17) | N2—Pt1—N4 | 177.35 (13) |
N2—Pt1—N1 | 80.58 (17) | N3—Pt1—N4 | 99.26 (16) |
N3—Pt1—N1 | 161.30 (17) | N1—Pt1—N4 | 99.25 (16) |
N1—C5—C6—N2 | 4.0 (6) | N2—C10—C11—N3 | −3.6 (6) |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) −x+1, −y+2, −z+1. |
We previously reported that amidate-bridge PtII dimers with a general formula of [Pt2(NH3)4(µ-amidato)2]2+ (amidate = acetamidate, α-pyrrolidinonate, α-pyridonate, etc.) serve as effective H2-producing catalysts in a well known photosystem consisting of edta, Ru(bpy)32+ and methylviologen (Sakai et al., 1993) (methylviologen = N,N'-dimethyl-4,4'-bipyridinium dichloride). Up to now, a large number of mono- and dinuclear PtII complexes have been prepared in our laboratory, and their catalytic activity has been evaluated by monitoring the photochemical hydrogen production from water under the visible-light illumination (unpublished results). Consequently, we recently found that mononuclear PtII complexes of N-methyl-4,4'-bipyridinium (MQ), such as the title complex, (I), exhibit relatively high catalytic function compared to the common mononuclear PtII complexes. Here we report the crystal structure of one of such complexe prepared in our laboratory.
The asymmetric unit of (I) consists of a mononuclear PtII complex cation, three perchlorate anions and a water molecule. Although various Pt(terpy) complexes have been reported to possess a planar geometry around the Pt(terpy) moiety (Cini et al., 2001; Lowe et al., 2001; Ross et al., 2001; Yam et al., 2001; Yam et al., 2002), the Pt(terpy) moiety in (I) is found to have a bent structure. The dihedral angles between the planes N1/C1—C5 and N2/C6—C10, and between the planes N2/C6—C10 and N3/C11—C15 are 9.2 (3)° and 5.6 (4)°, respectively. Moreover, the dihedral angle between the planes N1/C1—C5 and N3/C11—C15 is 14.2 (3)°. The N—C—C—N torsion angles (Table 1) indicate that the two pyridyl rings at either end of terpy are twisted toward the same side from the N2/C6—C10 plane. Consequently, the N1 atom shows an exceptional behavior, being shifted out of the Pt1/N2—N4 plane by 0.167 (6) Å, while the four-atom r.m.s. deviation from the mean plane is 0.019 Å. The pyridyl plane of MQ, which is bound to the Pt(II) atom, is canted by 81.7 (1)° with respect to the plane Pt1/N2—N4. The pyridyl planes within MQ are twisted by 33.5 (2)° to each other.
The origin of the bent structure discussed above can be understood by looking at the terpy–terpy interactions in the crystal. As shown in Fig. 2a, there are two different types of π–π stacking interactions between the terpy moieties. It also shows that the terpy moiety has a bent structure because the it is pushed down by the two adjacent cations at either end of the unit (as shown by the arrows in Fig. 2 b). The complexes shown in Fig. 2 are related by an inversion centre, where the plane-to-plane separations are 3.43 (2) Å for the stacking given by the C8—C14 moiety, and 3.46 (1) Å for that given by the C1—C3 unit. The Pt···Pt distances at the former and the latter geometries are 7.6411 (7) Å and 8.1543 (7) Å, respectively, confirming the lack of any metal–metal interaction. Details of the photochemical, electrochemical and catalytic properties of (I) will be reported elsewhere.