Relativistic Effects Break Periodicity in Group 6 Diatomic Molecules

Journal of the American Chemical Society
Yi-Lei WangJun Li

Abstract

The finding of the periodic law is a milestone in chemical science. The periodicity of light elements in the Periodic Table is fully accounted for by quantum mechanics. Here we report that relativistic effects change the bond multiplicity of the group 6 diatomic molecules M2 (M = Cr, Mo, W, Sg) from hextuple bonds for Cr2, Mo2, W2 to quadruple bonds for Sg2, thus breaking the periodicity in the nonrelativistic domain. The same trend is also found for other superheavy-element diatomics Rf2, Db2, Bh2, and Hs2.

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Citations

Feb 9, 2017·Physical Chemistry Chemical Physics : PCCP·Junwei Lucas BaoDonald G Truhlar
Feb 20, 2018·Chemistry : a European Journal·Olaf Hübner, Hans-Jörg Himmel
May 12, 2017·Physical Chemistry Chemical Physics : PCCP·Yue ChenShigeyoshi Sakaki
Jul 13, 2018·Physical Chemistry Chemical Physics : PCCP·Shu-Xian HuBingyun Ao
Nov 27, 2019·Angewandte Chemie·Jia-Qi WangMingfei Zhou
Jan 27, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Hong-Bo ZhaoQing-Jiang Pan
Jul 6, 2017·Chemical Communications : Chem Comm·Jyothish Joy, Eluvathingal D Jemmis
Jun 21, 2019·Physical Chemistry Chemical Physics : PCCP·Lukas TrombachJan-Michael Mewes
Jan 26, 2021·Frontiers in Chemistry·Changsu CaoJun Li
Jan 6, 2021·Angewandte Chemie·Guanjun WangMingfei Zhou

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