Uranium–Ligand Multiple Bonding in Uranyl Analogues, [L═U═L]n+, and the Inverse Trans Influence

2012 ◽  
Vol 52 (2) ◽  
pp. 529-539 ◽  
Author(s):  
Henry S. La Pierre ◽  
Karsten Meyer
Keyword(s):  
Multiple Bonding ◽  
Trans Influence

scholarly journals Charge control of the inverse trans-influence

2015 ◽  
Vol 51 (93) ◽  
pp. 16671-16674 ◽  
Author(s):  
Henry S. La Pierre ◽  
Michael Rosenzweig ◽  
Boris Kosog ◽  
Christina Hauser ◽  
Frank W. Heinemann ◽  
...  
Keyword(s):  
Ground State ◽  
Charge Control ◽  
Charge Localization ◽  
Multiple Bonding ◽  
Trans Influence ◽  
Multiply Bonded ◽  
Metal Ligand

The relative charge localization on the multiply bonded ligand (O2− or TMSN2−) governs the ground state stabilization derived from the inverse trans-influence (ITI) in U(vi) complexes of the [((RArO)3tacn)UL]+ system with metal-ligand multiple bonding (MLMB).

Darstellung, Schwingungsspektren und Normalkoordinatenanalyse von Chloro-Bromo-Rhodaten(III) / Preparation, Vibration Spectra and Normal Coordinate Analysis of Chloro-Bromo-Rhodates(III)

1989 ◽  
Vol 44 (10) ◽  
pp. 1221-1227 ◽  
Author(s):  
W. Preetz ◽  
W. Kuhr
Keyword(s):  
Exchange Chromatography ◽  
Trans Isomers ◽  
Normal Coordinate ◽  
Valence Force ◽  
Trans Influence ◽  
Diethylaminoethyl Cellulose ◽  
Point Groups ◽  
First Time ◽  
Ir And Raman ◽  
Good Agreement

The mixed chloro-bromo-rhodates(III) [RhClnBr6-n]3-, n = 1-5, have been separated for the first time by ion exchange chromatography on diethylaminoethyl-cellulose. Due to the stronger trans-effect of Br, as compared with Cl, on treatment of [RhBr6]3- with conc. HCl nearly pure cis/fac-isomers for n = 2, 3, 4 are formed. The reaction of [RhCl6]3- with conc. HBr yields mixtures of the cis/trans-isomers for n = 2, 4, which cannot be separated, but mer-[RhCl3Br3]3 is formed stereospecifically. The IR and Raman spectra of all isolated mixed ligand complexes are completely assigned according to point groups Oh, D3d, C4v, C3v and C2v, supported by normal coordinate analyses based on a general valence force field. The good agreement of calculated and observed frequencies confirms the assignments. Due to the stronger trans-influence of Br as compared to Cl, in all asymmetric Cl—Rh—Br axes the Rh—Br bonds are strengthened and the Rh—Cl bonds are weakened, indicated by valence force constants for Rh—Br approximately 14% higher, for Rh—Cl 10% lower, as compared with the values calculated for symmetric Br—Rh—Br and Cl—Rh—Cl axes, respectively.

The trans influence of F, Cl, Br and I ligands in a series of square-planar Pd(II) complexes. Relative affinities of halide anions for the metal centre in trans-[(Ph3P)2Pd(Ph)X]

1998 ◽  
Vol 280 (1-2) ◽  
pp. 87-98 ◽  
Author(s):  
Jeffrey P. Flemming ◽  
Mark C. Pilon ◽  
Oleg Ya. Borbulevitch ◽  
Mikhail Yu. Antipin ◽  
Vladimir V. Grushin
Keyword(s):  
Metal Centre ◽  
Trans Influence ◽  
Halide Anions ◽  
Square Planar ◽  
In Trans

Multiple Bonding Between Heavier Group 13 Elements

ChemInform ◽  
2003 ◽  
Vol 34 (34) ◽  
Author(s):  
Philip P. Power
Keyword(s):  
Group 13 ◽  
Multiple Bonding

Study of metal-ligand multiple bonding in osmium and iridium imido complexes: evidence for the cyclopentadienyl-imido analogy

1992 ◽  
Vol 11 (12) ◽  
pp. 4221-4225 ◽  
Author(s):  
David S. Glueck ◽  
Jennifer C. Green ◽  
Richard I. Michelman ◽  
Ian N. Wright
Keyword(s):  
Multiple Bonding ◽  
Imido Complexes ◽  
Metal Ligand
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