Lewis acid adducts of planar four-coordinated d8 complexes. Boron trifluoride-chlorocarbonylbis(triphenylphosphine) iridium and related systems

1968 ◽  
Vol 90 (4) ◽  
pp. 1079-1080 ◽  
Author(s):  
Robert Neal. Scott ◽  
Duward F. Shriver ◽  
Lauri. Vaska
Keyword(s):  
Lewis Acid ◽  
Boron Trifluoride ◽  
Lewis Acid Adducts

Comparison of the charge distributions and barriers to ring inversion of protonated eucarvone and its boron trihalide adducts

1977 ◽  
Vol 55 (20) ◽  
pp. 3495-3500 ◽  
Author(s):  
Ronald F. Childs ◽  
Yee-Chee Hor
Keyword(s):  
Lewis Acid ◽  
Boron Trifluoride ◽  
Positive Charge ◽  
Chemical Shifts ◽  
Carbonyl Oxygen ◽  
Uv Spectra ◽  
Inversion Process ◽  
Ring Inversion ◽  
Charge Distributions ◽  
Lewis Acid Adducts

The protonation and formation of the boron trifluoride, trichloride, and tribromide adducts of eucarvone, 1, are described. Examination of the nmr and uv spectra of these systems showed that in each case the proton or Lewis acid was bonded to the carbonyl oxygen of 1. From the various 13C chemical shifts of the Lewis acid adducts of 1, it is concluded that there is significantly less positive charge induced on the dienylic part of these molecules than is found with protonated 1. All of these cationic systems undergo a ring inversion process, the barriers of which are about 1 kcal/mol greater than that reported for the comparable inversion of 1.

.lambda.5-Phosphonitriles and .lambda.3-Phosphinonitrenes: Evidence for Nitrene-Lewis Acid Adducts

1994 ◽  
Vol 116 (4) ◽  
pp. 1225-1229 ◽  
Author(s):  
Gilles Alcaraz ◽  
Antoine Baceiredo ◽  
Francoise Dahan ◽  
Guy Bertrand
Keyword(s):  
Lewis Acid ◽  
Lewis Acid Adducts

Methansulfinylchlorid-Lewissäure-Addukte CH3S(Cl)OMF5 (M = As, Sb) und Kristallstruktur von CH3S(Cl)OSbCl5 [1] / Methanesulfinylchloride Lewis Acid Adducts CH3S(Cl)OMF5 (M = As, Sb) and Crystal Structure of CH3S(Cl)OSbCl5 [1]

1996 ◽  
Vol 51 (1) ◽  
pp. 133-138 ◽  
Author(s):  
Rolf Minkwitz ◽  
Ulrike Lohmann ◽  
Hans Preut
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Lewis Acid ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
Space Group ◽  
New Compounds ◽  
Lewis Acid Adducts

Abstract CH3S(0)C1 reacts in HF as solvent with MF5 (M = As, Sb) to give products CH3S(Cl)OMF5 (M = As, Sb). The new compounds are stable below 253 K and were charac­ terized by Raman and NMR spectroscopy.In addition, the crystal structure of CH3S(Cl)OSbCl5 has been determinated. The complex crystallizes in the monoclinic space group P21/n with a = 644.3(5), b = 1905.9(14), c = 900.0(7) pm, β = 99.27(6)° with four formula units per unit cell.

Group 13 Lewis Acid Adducts of [PCl2N]3

2011 ◽  
Vol 50 (18) ◽  
pp. 8937-8945 ◽  
Author(s):  
Zin-Min Tun ◽  
Amy J. Heston ◽  
Matthew J. Panzner ◽  
Doug A. Medvetz ◽  
Brian D. Wright ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Group 13 ◽  
Lewis Acid Adducts
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