Infrared-optical double-resonance measurements on O-H center dot center dot center dot H-Ge dihydrogen-bonded phenol-triethylgermanium hydride complex in the gas phase

Abstract

Spectroscopic investigation of a dihydrogen-bonded complex between phenol and triethylgermanium hydride is reported here. Laser-induced fluorescence excitation, fluorescence-detected infrared, and IR-UV hole-burning spectroscopic studies were carried out in supersonic jet to investigate the complex formation between phenol and triethylgermanium hydride. The lowering of the O-H stretching frequency of the phenol moiety in the complex with triethylgermanium hydride clearly establishes the role of phenol as hydrogen bond donor. The experimental results together with the ab-initio calculations unambiguously confirm formation of an O-H center dot center dot center dot H-Ge dihydrogen-bonded complex between phenol and triethylgermanium hydride.