Synthesis and Structural Characterization of a Series of Group 11 2,2-Dialkyl-1,3-dicyclohexylguanidinate Complexes

Sonya K. Adas; Jesus A. Ocana; Scott D. Bunge

doi:10.1071/CH14134

RESEARCH ARTICLE

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Synthesis and Structural Characterization of a Series of Group 11 2,2-Dialkyl-1,3-dicyclohexylguanidinate Complexes

Sonya K. Adas ^A , Jesus A. Ocana ^A and Scott D. Bunge ^A ^B

+ Author Affiliations

- Author Affiliations

^A Kent State University, Department of Chemistry and Biochemistry, Kent OH 44242, USA.

^B Corresponding author. Email: sbunge@kent.edu

Australian Journal of Chemistry 67(7) 1021-1029 https://doi.org/10.1071/CH14134
Submitted: 11 March 2014 Accepted: 16 April 2014 Published: 4 June 2014

Abstract

The addition of either lithium dimethylamide or lithium diethylamide to a tetrahydrofuran (THF) solution of 1,3-dicyclohexylcarbodiimide yielded THF adducts of lithium 2,2-dimethyl-1,3-dicyclohexylguandidinate (1) and lithium 2,2-diethyl-1,3-dicyclohexylguandidinate (2), respectively. One equivalent of either 1 or 2 was subsequently reacted with one equivalent of Group 11 halide (CuCl, AgBr, and AuCl) to generate oligonuclear complexes with the general formula {M[CyNC(NR₂)NCy]}_n where M, R, and n are respectively Cu, CH₃, 2 (3); Cu, CH₂CH₃, 2 (4); Ag, CH₃, 3 (5); Ag, CH₂CH₃, 3 (6); Au, CH₃, 2 (7); and Au, CH₂CH₃, 2 (8). Compounds 1–8 were characterized by single-crystal X-ray diffraction. The bulk powders for all complexes were found to be in agreement with the crystal structures based on elemental analyses, Fourier transform infrared spectroscopy, and ¹H, ¹³C, and ⁷Li NMR studies. The unique structural aspects of this family of Group 11 complexes are highlighted.

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Synthesis and Structural Characterization of a Series of Group 11 2,2-Dialkyl-1,3-dicyclohexylguanidinate Complexes

Abstract

References

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