Abstract

Ultraviolet measurements in potassium bromide disks of the 2:1 complexes of 8-aminoquinoline with the chlorides of Mg, Ni(II) and Pd(II), and the 1.1 complexes with the chlorides of Zn, Cd and Cu(II) show a shift toward shorter wavelengths from that of the 8-aminoquinoline in the 300 millimicron region. The extent of the shift is almost identical for the Mg, Zn, Cd, Ni(II) and Cu(II) chelates, indicating that the metals are equally effective in blocking the resonance between the amino group and the quinoline ring by the nitrogen-to-metal bond formation. The ultraviolet spectra of the complexes of 8-aminoquinoline in dioxane do reveal differences in the values of the long wavelength maxima. Absorption patterns in the 3 micron region reveal the expected decrease in the frequencies of the N-H stretching vibration on chelation.

The Infrared Absorption and Reflection Spectra of the Ammonium Halides

L. F. H. Bovey
J. Opt. Soc. Am. 41(11) 836-848 (1951)

Electrodeless Metal-Halide Lamps

C. H. Corliss, W. R. Bozman, and F. O. Westfall
J. Opt. Soc. Am. 43(5) 398-400 (1953)

Nonlinear absorption reversing between an electroactive ligand and its metal complexes

Konstantinos Iliopoulos, Abdelkrim El-Ghayoury, Hasnaa El Ouazzani, Mindaugas Pranaitis, Esmah Belhadj, Emilie Ripaud, Miloud Mazari, Marc Sallé, Denis Gindre, and Bouchta Sahraoui
Opt. Express 20(23) 25311-25316 (2012)

Spectral optimization of white light from hybrid metal halide perovskites

Peifen Zhu, Hongyang Zhu, Gopi Chandra Adhikari, and Saroj Thapa
OSA Continuum 2(6) 1880-1888 (2019)

White-light hydrotalcite-like compound emission from the incorporation of red-, green-, and blue-emitting metal complexes

Hong Chen, WenGong Zhang, ZhengHuan Lin, and QiDan Ling
Opt. Mater. Express 3(1) 105-113 (2013)