Antiferromagnetic complexes with the metal-metal bond XXVIII. Synthesis and molecular structure of the antiferromagnetic cluster [CpCr(μ-SCMe3)]2(μ4-S) [PtMe3(μ-I)]2

Autor: Pasynskii, A.A., Torubaev, Y.V., Nefedov, S.E., Eremenko, I.L., Ellert, O.G., Belsky, V.K., Stastch, A.I.
Zdroj: Journal of Organometallic Chemistry; May 1997, Vol. 537 Issue: 32-40 p433-436, 4p
Abstrakt: The reaction of [CpCr(μ-SCMe3)]2(μ-S) (1) with [PtMe3I]4 in hot benzene leads to the formation of the tetranuclear cluster I[CpCr(μ-SCMe3)]2(μ4-S)[PtMe3(μ-I)]2 (2). According to X-ray data, cluster 2 contains a molecule of 1 (Cr-Cr 2.761(9) Å, Cr-S-Cr 70.1(4)°), coordinated to a diplatinum fragment via a μ4-S atom (Pt-S 2.583(10) and 2.560(9) Å). 2 has antiferromagnetic properties (−2J = 202 cm−1) due to the interaction between two paramagnetic Cr(III) centers (S = 3/2).
Databáze: Supplemental Index
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