CHEMISTRY OF THE TRIFLUOROMETHYL GROUP: PART I. COMPLEX FORMATION BY PHOSPHINES CONTAINING THE TRIFLUOROMETHYL GROUP

1960 ◽  
Vol 38 (1) ◽  
pp. 119-124 ◽  
Author(s):  
M. A. A. Beg ◽  
H. C. Clark
Keyword(s):  
Complex Formation ◽  
Boron Trifluoride ◽  
Trifluoromethyl Group ◽  
Bonding Properties ◽  
New Compounds ◽  
Group Part

The formation of co-ordination compounds of (CH3)3P, (CH3)2PCF3, CH3P(CF3)2, and P(CF3)3, with boron trifluoride and platinum (II) chloride has been studied. The properties of the new compounds (CH3)2PCF3.BF3, [(CH3)2PCF3]2PtCl2, [CH3P(CF3)2]2PtCl2 are described, and it is hence concluded that the stabilities of the boron trifluoride compounds decrease in the order.[Formula: see text]while for the platinum (II) complexes the order of stability is[Formula: see text]These two orders are related to the electronegativity of the trifluoromethyl group and its influence on the bonding properties of the phosphorus atoms.

CHEMISTRY OF THE TRIFLUOROMETHYL GROUP: PART V. INFRARED SPECTRA OF SOME PHOSPHORUS COMPOUNDS CONTAINING CF3

1962 ◽  
Vol 40 (3) ◽  
pp. 393-398 ◽  
Author(s):  
M. A. A. Beg ◽  
H. C. Clark
Keyword(s):  
General Formula ◽  
Infrared Spectra ◽  
Boron Trifluoride ◽  
Phosphorus Compounds ◽  
Trifluoromethyl Group ◽  
Absorption Bands ◽  
Group Part

The infrared spectra of several series of trifluoromethyl-phosphorus compounds are correlated, the compounds examined being the iodides CF3PI2 and (CF3)2PI, the methyl-trifluoromethyl-phosphines of the general formula (CH3)nP(CF3)3−n, where n = 1, 2, or 3, and the analogous phenyl-trifluoromethyl-phosphines. Satisfactory assignments are made for the majority of absorption bands in the 650–4000 cm−1 region. The infrared spectra of some phosphine – boron trifluoride adducts are also examined and assignments of the principal bands are made.

CHEMISTRY OF THE TRIFLUOROMETHYL GROUP: PART IV. DIPHENYLTRIFLUOROMETHYLPHOSPHINE AND COMPLEX FORMATION BY PHENYLTRIFLUOROMETHYLPHOSPHINES

1962 ◽  
Vol 40 (2) ◽  
pp. 283-288 ◽  
Author(s):  
M. A. A. Beg ◽  
H. C. Clark
Keyword(s):  
Complex Formation ◽  
Trifluoromethyl Group ◽  
Hydrolysis Of ◽  
Group Part

Three methods of preparing diphenyltrifluoromethylphosphine are described. The hydrolysis of the phosphine to diphenylphosphinic acid and fluoroform, and the formation of dibromo-and diiodo-phosphoranes from the phosphine are reported. The adducts (C6H5)3P•BF3 and (C6H5)2CF3P•BF3 are described and the latter is found to be the less stable. With platinum (II) chloride, the complexes trans-[(C6H5)2PCF3]2PtCl2 and trans-[C6H5PCF3)2]2PtCl2 are formed. The properties of the BF3 adducts and PtCl2 complexes are interpreted in terms of the electronegativity and size of the trifluoromethyl group.

Spectral and bonding properties of bis(N,N-disubstituted-dithiocarbamato)iron(III)dihalide complexes studied by experimental and EHMO quantum-chemical methods

1985 ◽  
Vol 63 (11) ◽  
pp. 3249-3255 ◽  
Author(s):  
George A. Katsoulos ◽  
Constantinos A. Tsipis ◽  
Fotios D. Vakoulis
Keyword(s):  
Magnetic Susceptibility ◽  
Thermogravimetric Analysis ◽  
Quantum Chemical ◽  
Analysis Data ◽  
Spectroscopic Methods ◽  
Chemical Methods ◽  
Magnetic Systems ◽  
Quantum Chemical Methods ◽  
Bonding Properties ◽  
New Compounds

A new series of homobinuclear iron(III) halobisdithiocarbamate complexes antiferromagnetically coupled through a molecular halogen bridging unit has been synthesised and studied. The complexes have been characterized chemically and by spectroscopic methods and magnetic susceptibility measurements. The volatility characteristics and thermogravimetric analysis data for the new compounds are also studied. Finally, quantum-chemical calculations have been used to provide a qualitative guide to the possible pathways for the superexchange processes observed in these molecular magnetic systems, as well as to interpret their electronic spectra.

Complex Formation between Anisole and Boron Trifluoride: Structural and Binding Properties

2008 ◽  
Vol 112 (51) ◽  
pp. 13600-13608 ◽  
Author(s):  
Tao Lin ◽  
Weijiang Zhang ◽  
Lichang Wang
Keyword(s):  
Complex Formation ◽  
Boron Trifluoride ◽  
Binding Properties
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