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Synthesis of Two New Group 13 Benzoato-Chloro Complexes: A Structural Study of Gallium and Indium Chelating CarboxylatesTwo new heteroleptic chelated-benzoato gallium (III) and indium (III) complexes have been prepared and structurally characterized. The molecular structures of [GaCl2(4-Mepy)2(O2CPh)]4-Mepy (1) and [InCl(4-Mepy)2(O2CPh)2]4-Mepy (2) have been determined by single-crystal x-ray diffraction. The gallium compound (1) is a distorted octahedron with cis-chloride ligands co-planar with the chelating benzoate and the 4-methylpyridines trans to each other. This is the first example of a Ga(III) structure with a chelating benzoate. The indium compound (2) is a distorted pentagonal bipyramid with two chelating benzoates, one 4-methylpyridine in the plane and a chloride trans to the other 4-methylpyridine. The indium bis-benzoate is an unusual example of a seven-coordinate structure with classical ligands. Both complexes, which due to the chelates, could also be described as pseudo-trigonal bipyramidal, include a three-bladed motif with three roughly parallel aromatic rings that along with a solvent of crystallization and electron-withdrawing chloride ligand(s) stabilize the solid-state structures.
Document ID
20110004247
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Duraj, Stan A.
(Cleveland State Univ. Cleveland, OH, United States)
Hepp, Aloysius F.
(NASA Glenn Research Center Cleveland, OH, United States)
Woloszynek, Robert
(Case Western Reserve Univ. Cleveland, OH, United States)
Protasiewicz, John D.
(Case Western Reserve Univ. Cleveland, OH, United States)
Dequeant, Michael
(Hendrix Coll. Conway, AR, United States)
Ren, Tong
(Purdue Univ. West Lafayette, IN, United States)
Date Acquired
August 25, 2013
Publication Date
December 1, 2010
Subject Category
Inorganic, Organic And Physical Chemistry
Report/Patent Number
NASA/TM-2010-216826
INOR-432
E-17455
Meeting Information
Meeting: Spring 2010 National Meeting and Exposition
Location: San Francisco, CA
Country: United States
Start Date: March 21, 2010
End Date: March 25, 2010
Sponsors: American Chemical Society
Funding Number(s)
WBS: WBS 387498.01.03.02.05
Distribution Limits
Public
Copyright
Public Use Permitted.
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