IR and PMR spectra of some arene ?-complexes of chromium

Characterization and Identification

“…This is illustrated in the case of 2; the aromatic protons are at δ 4.19 (in contrast to 7.23 for ethylbenzene) ; the C H 2 protons give a quadruplet (J = 7.5 Hz) centered at δ 2.30 (2.68 for ethylbenzene); the C H 3 protons give a triplet (J = 7.5 Hz) centered at δ 1.10 (1.25 for ethyl benzene) [26]. This is illustrated in the case of 2; the aromatic protons are at δ 4.19 (in contrast to 7.23 for ethylbenzene) ; the C H 2 protons give a quadruplet (J = 7.5 Hz) centered at δ 2.30 (2.68 for ethylbenzene); the C H 3 protons give a triplet (J = 7.5 Hz) centered at δ 1.10 (1.25 for ethyl benzene) [26].…”

Synthesis, characterization, and thermal analysis of two polymeric chromium ternary complexes with nitrilotriacetic acid and alanine or glycine

“…It is also present in many pharmaceutical products due to its ability to stabilize blood sugar level 20. For these reasons many scientists keep trying to prepare novel compounds that containing chromium, especially coordination compounds 21–26…”