Abstract

FT-IR, ²H NMR, FAB mass spectrometry, and ion exchange chromatography were used to characterize structures in chromium acetate solutions prepared under several different conditions. Infrared and ²H NMR peaks for ionic, unidentate, bidentate, and bridging acetate groups were assigned on the basis of chemical information and appearance/disappearance correlations. FAB mass spectrometry was used to confirm the existence of the cyclic chromium trimer in solution. Ion exchange chromatography allowed separation of the complexes based on ionic charge. Replacement of acetate groups by hydroxyl groups causes ring opening and the formation of linear species. Many commercial chromium(III) acetates contain oxalate as well as acetate ligands.

Characterization of aqueous alcohol solutions in bottles with THz reflection spectroscopy

Peter Uhd Jepsen, Jens Kristian Jensen, and Uffe Møller
Opt. Express 16(13) 9318-9331 (2008)

Synthesis, chemical characterization and nonlinear optical properties of thallium(III) phthalocyanine halide complexes

Jeffrey P. Fitzgerald, Peter D. Huffman, Ian A. Brenner, Jeremiah J. Wathen, Guy Beadie, Richard G. S. Pong, James S. Shirk, and Steven R. Flom
Opt. Mater. Express 5(7) 1560-1578 (2015)

Surface hydroxylation process of YAG crystal in aqueous solution

Xiaolong Han, Zhuji Jin, Qing Mu, Lin Niu, and Ping Zhou
Opt. Express 31(6) 10038-10051 (2023)

Spectral characterization of a supercontinuum source based on nonlinear broadening in an aqueous K₂ZnCl₄ salt solution

Timothy S. Robinson, Siddharth Patankar, Emma Floyd, Nicholas H. Stuart, Nicholas Hopps, and Roland A. Smith
Appl. Opt. 56(35) 9837-9845 (2017)

Infrared Spectroscopy of Biologic Materials in Aqueous Solutions

E. R. Blout and H. Lenormant
J. Opt. Soc. Am. 43(11) 1093-1095 (1953)