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Journal of Coordination Chemistry Volume 70, 2017 - Issue 20
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Preparation, characterization, and structural analysis of d8 palladium and platinum compounds containing amino acid ester derivatized diimine ligands. Observation of liquid crystal behavior

Richard S. HerrickDepartment of Chemistry, College of the Holy Cross, Worcester, MA, USACorrespondence[email protected]
,
Christopher J. ZieglerDepartment of Chemistry, University of Akron, Akron, OH, USA
,
Tang DingDepartment of Chemistry, University of Akron, Akron, OH, USA
,
Janet ShawDepartment of Chemistry and Biochemistry, Kennesaw State University, Kennesaw, GA, USA
,
Iwona WronaDepartment of Chemistry, College of the Holy Cross, Worcester, MA, USA
,
Matthew BeaverDepartment of Chemistry, College of the Holy Cross, Worcester, MA, USA
,
Joshua GiguereDepartment of Chemistry, College of the Holy Cross, Worcester, MA, USA
,
Caroline MausDepartment of Chemistry, College of the Holy Cross, Worcester, MA, USA
&
Peter MüllerDepartment of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
 show all
Pages 3488-3500 | Received 19 Jul 2017, Accepted 22 Aug 2017, Published online: 09 Oct 2017
 
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Abstract

Eight new compounds, M(pyca(CH2)xCOOR)Cl2, M = Pd, Pt; R = Me, Et; x = 2, 3, 5, 11, were prepared. The resulting new complexes were characterized by 1H and 13C NMR spectroscopy and each was also structurally elucidated by X-ray crystallography. The compounds share general structural features, but there are differences in the alignment of the alkyl chain; as the chain lengthens, the chain straightens relative to the plane of the metal complex. For the dodecanoic ester derivatives, a nearly linear alkyl chain was observed. These longer alkyl derivatives show mesogenic behavior.

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