SYNTHESIS AND MOLECULAR-STRUCTURES OF THE REDOX PAIR (OCTAETHYLPORPHINATO)BIS(PENTAMETHYLENE SULFIDE)OSMIUM(II) AND (OCTAETHYLPORPHINATO)BIS(PENTAMETHYLENE SULFIDE)OSMIUM(III) HEXAFLUOROPHOSPHATE

被引:6
作者
SCHEIDT, WR [1 ]
NASRI, H [1 ]
机构
[1] UNIV CTR MONASTIR,FAC SCI MONASTIR,DEPT CHIM,MONASTIR 5000,TUNISIA
关键词
D O I
10.1021/ic00112a035
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
We report the preparation, crystallization, and molecular structures of the redox pair (octaethylporphinato)bis(pentamethylene sulfide)osmium(II) and (octaethylporphinato)bis(pentamethylene sulfide)osmium(III) hexafluorophosphate. Both complexes have the osmium atom centered in the porphyrin plane with required inversion symmetry. The average Os-II = N-p 2.050(9) Angstrom and the axial Os-II-S distance is 2.352(2) Angstrom. The average Os-III-N-p is possibly shorter, at 2.046(2) Angstrom, and the axial Os-III-S distance is longer, at 2.382(2) Angstrom. Crystal data for [Os(OEP)(PMS)(2)]: a = 10.540(6) Angstrom, b = 10.620(6) Angstrom, c = 11.001(4) Angstrom, alpha = 99.21(3)degrees, beta = 95.35(3)degrees, gamma = 117.41(3)degrees, triclinic, space group P (1) over bar, V = 1059.3 Angstrom(3), Z = 1, unique observed data = 4895, R(1) = 0.047, R(2) = 0.063. Crystal data for [Os(OEP)(PMS)(2)]PF6: a = 10.449(8) Angstrom, b = 11.161(7) Angstrom, c = 11.523(2) Angstrom, alpha = 98.04(3)degrees, beta = 104.63(2)degrees, gamma = 111.93(7)degrees, triclinic, space group P (1) over bar, V = 1164.4 Angstrom(3), Z = 1, unique observed data = 5390, R(1) = 0.036, R(2) = 0.047.
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页码:2190 / 2193
页数:4
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