Molybdenum carbonyl complexes of diphenylphosphinous acid and diphenylphosphinous acid derivatives. Crystal and molecular structures of...

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Abstract

  • Title full: Molybdenum carbonyl complexes of diphenylphosphinous acid and diphenylphosphinous acid derivatives. Crystal and molecular structures of [Et N][Mo(CO) (PPh O) H] ·0.37 CH Cl , Mo(CO) (PPh OH)(PPh OCH CH NMe )·H O and Mo(CO) (PPh SPPh ). Crystal and molecular structures for the three complexes [Et N][Mo(CO) (PPh O) H] ·0.37CH Cl (1), [Mo(CO) (PPh OH)(PPh OCH CH NMe ]·H O (2) and [Mo(CO) (PPh SPPh ] (3) are reported. The octahedral coordination sphere at molybdenum consists of four carbonyl groups and two cis oriented phosphorus donor ligands. The unlocated hydrogen atom in 1 forms a strong hydrogen bridge between the two Ph PO ligands as evidence by a short OO distance of 2.415(4) Å. In complex 2, the acidic proton of the PPh OH ligand forms a strong hydrogen bond to the tertiary amine with a NO distance of 2.77 Å. Complex 3 has essentially C symmetry; the PSP bond angle is 86.9°. The PMP angles are 88.06(4)°, 86.36(7)° and 72.02(7)° for 1, 2 and 3, respectively. The average MC distance over all these compounds is 2.010(6) Å; the MP distances range from 2.487(2) to 2.563(2) Å and average to 2.51(1) Å. Compound 1 crystallizes in space group P1 with a = 12.456(2) Å, b = 13.757(3) Å, c = 11.892(3) Å, α = 95.51(2)° β = 108.30(2)°, γ = 91.91(1)°, V = 1922(2) Å , Z = 2. Compound 2 crystallizes in space group Pbca with a = 20.901(3) Å, b = 16.032(3) Å, c = 19.686(5) Å, V = 6597(2) Å , Z = 8. Compound 3 crytallizes in space group P2 2 2 with a = 11.014(1) Å, b = 14.244(2) Å, c = 17.233(1) Å, V = 27041(1) Å , Z = 4. © 1984. 4 4 2 2 2 2 4 2 2 2 2 2 2 4 2 2 4 4 2 2 2 2 4 2 2 2 2 2 2 4 2 2 2 2 2v 1 1 1 - 3 3 3
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    Author List

  • Cotton FA; Falvello LR; Tomas M; Gray GM; Kraihanzel CS
  • Start Page

  • 129
  • End Page

  • 139
  • Volume

  • 82
  • Issue

  • 2