Darstellung, Kristallstruktur, Schwingungsspektren und Normalkoordinatenanalyse von trans-[OsO2(N2H2C2O2)2]2- / Synthesis, Crystal Structure, Vibrational Spectra, and Normal Coordinate Analysis of trans-[OsO2(N2H2C202)2]2-
1998 ◽
Vol 53
(11)
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pp. 1338-1342
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Keyword(s):
X Ray
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The treatment of K2[OsO2(OH)4] with oxamide in aqueous solution yields [OsO2(N2H2C2O2)2]2-. The crystal structure of trans-(Ph4P)2[ OsO2(N2H2C2O2)2]·CH2Cl2 (triclinic, space group P1̅, a = 10.447(1), b = 14.102(4), c = 16.962(2) Å, a = 90.037(1), β = 90.633(7), γ = 98.812(2)°, Z = 2) has been determined by single crystal X-ray diffraction analysis. The IR and Raman spectra were measured at room temperature. Based on the molecular parameters of the X-ray determination a normal coordinate analysis has been performed and the vibrations are assigned. The valence force constants are fd(Os=O) = 6.7, fd(Os-N) = 2.4, fd(C-N) = 4.9, fd(C=0) = 11.15 and fd(C-C) = 4.7 mdyn/Å.
1998 ◽
Vol 53
(8)
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pp. 823-828
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2002 ◽
Vol 57
(9)
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pp. 1036-1042
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1998 ◽
Vol 53
(11)
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pp. 1329-1334
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1996 ◽
Vol 51
(4)
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pp. 551-556
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2000 ◽
Vol 55
(8)
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pp. 691-694
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