Metal-Metal frequencies and force constants for the group six carbonyl anions, Cr2(CO)2−10, Mo2(CO)2−10, and W2(CO)2−10

✍ Scribed by S. Onaka; C.B. Cooper III; D.F. Shriver

• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 222 KB
• Volume: 37
• Category: Article
• ISSN: 0020-1693
• DOI: 10.1016/s0020-1693(00)95474-4

✦ Synopsis

Transition metal M-M bond strengths are generally thought to increase going down a group of the periodic table. However, this impression is for the most part based on chemical properties and not on precise physical data. It is therefore interesting to inspect the trends in force constants going down a group. Homonuclear neutral compounds containing group seven metals M2(CO),0 (M = Mn, Tc, and Re), have been investigated previously [l] and heteronuclear dimetallic compounds between group six and seven metals have been investigated [2, 31. In both cases an increase in force constant was noted on going to heavier members of the series. In the present paper we investigate the M-M stretching frequencies and force constants for the group six dianions M,(CO):, .