TITLE:
Molecular and electronic structure of several 2,3-dithienylquinoxalines and their 2:1 complexes with silver(I) nitrate
AUTHORS:
Guy Crundwell, Stefanie Cantalupo, Paul D. C. Foss, Brian McBurney, Kristen Kopp, Barry L. Westcott, James Updegraff III, Matthias Zeller, Allen D. Hunter
KEYWORDS:
X-Ray Diffraction; Silver(I) Complexes; Thiophene; Quinoxalines; Photoelectron Spectroscopy
JOURNAL NAME:
Open Journal of Inorganic Chemistry,
Vol.4 No.1,
January
2,
2014
ABSTRACT: We have synthesized three bis (thienyl) quinoxalinesilver(I)
complexes; however, unlike analogous silver(I) complexes of pyridylquinoxaline
that utilize (N, N) bidentate behavior from the quinoxaline and pyridyl ring
nitrogens, the bis(thienyl) quinoxaline ligands did not utilize the bonding potential
of the thienyl rings to give (N, S) bonding modes. PES spectra modeling of
these ligands indicates that the preferential metal bonding via only the
quinoxaline nitrogen atoms is due to the N-rich, but S-poor, characters of the
frontier orbitals.