121653-47-2Relevant academic research and scientific papers
Synthesis and structures of new six-coordinate 16- and 17-valence-electron rhenium phosphine complexes and their use in preparing seven-coordinate mixed RNC/CO rhenium(III) compounds
Warner, Steve,Lippard, Stephen J.
, p. 3008 - 3013 (2008/10/08)
When [ReCl2(CN-i-Pr)3(PMePh2)2]SbF 6 in toluene is heated to reflux, the paramagnetic 16-electron all-trans isomer of [ReCl2(CN-i-Pr)2(PMePh2)2]F 6 (1) is formed. This complex has been characterized by IR and NMR spectroscopies, elemental analysis, and a single-crystal X-ray structure determination. Addition of two-electron donors L (L = CO, CN-i-Pr) to 1 results in the formation of [ReCl2(CN-i-Pr)2L(PMePh2)2]SbF 6. Reaction of [ReCl3(CO)2(PMePh2)2] with "(Cp*)2Zr", formed in situ from Mg dust and [(Cp*)2ZrCl2], gives rise to the paramagnetic 17-electron compound [ReCl2(CO)2(PMePh2)2] (2) This complex has been characterized by both spectroscopy and X-ray crystallography. The octahedral coordination sphere in 2 is comprised of two cis chloride, two cis carbonyl, and two trans phosphine ligands. Crystallographic details are as follows: 1, ReSbCl2P2-F6N2C34H 40, P21/n, a = 6.9456 (8) ?, b =20.301 (4) ?, c = 28.428(8) ?, β = 92.54 (2)°, Z = 4; 2, ReCl2P2O2C28H26, P21212, a = 9.628 (2) ?, b = 13.013 (3) ?, c = 11.131 (3) ?, Z = 2.
