100243-99-0

Basic information

• Product Name: fac-[1,1,1-tris((dimethylphosphino)methyl)ethane]chromium(III) chloride*methylene chloride
• Synonyms: fac-[1,1,1-tris((dimethylphosphino)methyl)ethane]chromium(III) chloride*methylene chloride
• CAS NO: 100243-99-0
• Molecular Weight: 495.545
• Mol File: 100243-99-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: fac-[1,1,1-tris((dimethylphosphino)methyl)ethane]chromium(III) chloride*methylene chloride(CAS DataBase Reference)
• NIST Chemistry Reference: fac-[1,1,1-tris((dimethylphosphino)methyl)ethane]chromium(III) chloride*methylene chloride(100243-99-0)
• EPA Substance Registry System: fac-[1,1,1-tris((dimethylphosphino)methyl)ethane]chromium(III) chloride*methylene chloride(100243-99-0)

Safety Data

• Hazardous Substances Data: 100243-99-0(Hazardous Substances Data)

Upstream product

• 77609-83-7 1,1,1-tris(dimethylphosphinomethyl)ethane 
• 10025-73-7 chromium(III) chloride 

Relevant articles and documents

Mononuclear chromium complexes of the tripod ligand (tripod = 1,1,1-tris((dimethylphosphino)methyl)ethane)

Tripod (tripod = 1,1,1-tris((dimethylphosphino)methyl)ethane) reacts with anhydrous CrCl3 or CrCl3(THF)3 in THF or CH2Cl2 to give CrCl3(tripod), which may be crystallized from CH2Cl2 as a dichloromethane solvate, fac-CrCl3(tripod)·CH2Cl2 (1), in high yield (>95%). All three phosphorus atoms are coordinated to the Cr atom. The reaction of anhydrous CrCl2 with 2 equiv of tripod in THF yields trans-CrCl2(tripod)2 (2) in 96% yield. In 2, each tripod behaves as a bidentate ligand with one uncoordinated -PMe2 group. The reduction of 2 with Na/Hg in THF yields Cr(tripod)2 (3) in 70% yield. The coordination geometry about Cr in 3 is that of a trigonal antiprism. X-ray diffraction studies have been performed on fac-CrCl3(tripod)·CH2Cl2 (1), CrCl2(tripod)2 (2), and Cr(tripod)2 (3). Crystal data for 1 (CrCl5P3C12H29): Mr = 495.55, orthorhombic, Pbca (No. 61), a = 15.602 (2) A?, b = 16.718 (5) A?, c = 17.030 (2) A?, V= 4442 A?3, dcalcd = 1.482 g/cm3, Z = 8, λ(Mo Kα) = 0.71073 A? (graphite monochromator), μ(Mo Kα) = 13.2 cm-1, final R = 0.046 (Rw = 0.049) from 2351 observed reflections (I > 3σ(I)) of 4351 measured. Crystal data for 2 (CrCl2P6C22H54): Mr = 627.42, monoclinic, P21/c (No. 14), a = 8.305 (1) A?, b = 20.528 (3) A?, c = 10.008 (2) A?, β = 103.799 (13)°, V = 1658 A?3, dcalcd = 1.257 g/cm3, Z = 2, λ(Mo Kα) = 0.71073 A? (graphite monochromator), μ(Mo Kα) = 8.0 cm-1, final R = 0.059 (Rw = 0.071) from 1397 observed reflections (I > 3σ(I)) of 1546 measured. Crystal data for 3 (CrP6C22H54): Mr = 556.52, orthorhombic, Pnnm (No. 58), a = 9.964 (2) A?, b = 10.709 (2) A?, c = 13.723 (3) A?, V = 1464 A?3, dcalcd = 1.262 g/cm3, Z = 2, λ(Mo Kα) = 0.71073 A? (graphite monochromator), μ(Mo Kα) = 7.1 cm-1, final R = 0.063 (Rw = 0.067) from 815 observed reflections (I > 3σ(I)) of 1511 measured. Complexes 1-3 have also been characterized spectroscopically.