Synthesis, characterization, and x-ray structure of .eta.5-cyclopentadienyltris(N,N-dimethyldithiocarbamato)zirconium(IV)

Coordination Chemistry and QTAIM Analysis of Homoleptic Dithiocarbamate Complexes, M(S2CNiPr2)4 (M = Ti, Zr, Hf, Th, U, Np)

“…For example, the average Ti-S bond distance of 2.552 Å in 1 is similar to the range of bond lengths of 2.522(8)-2.606(8) Å in Ti(S2CNEt2)4 10. In 2, an average Zr-S bond distance of 2.655 Å was observed, which is similar to 2.69 Å in (C5H5)Zr(S2CNMe2)3 42. While no dithiocarbamate ligated complexes of hafnium could be found, the average Hf-S bond distance of 2.640 Å in 4 is significantly longer than the Hf-thiolate distances of 2.502(1) Å in (C5Me5)2Hf(SPh)2.…”

“…18 In 2, an average Zr−S bond distance of 2.655 Å was observed, which is similar to 2.69 Å in (C 5 H 5 )Zr-(S 2 CNMe 2 ) 3 . 44 While no dithiocarbamate ligated complexes of Hf could be found, the average Hf−S bond distance of 2.640 Å in 4 is reasonable given that Hf 4+ (r = 0.97 Å) is slightly smaller than Zr 4+ (r = 0.98 Å), 43 thus having a slightly shorter bond distance. The homoleptic complexes An(S 2 CNEt 2 ) 4 (An = Th, 2 Np, 7 ) compare well with the average Th−S and Np−S distances of 2.87 Å (2.870 Å in 5) and 2.795 Å (2.787 Å in 7), respectively.…”

Synthesis and reactivity of low-valent uranium and neptunium complexes

“…552 Å in 1 is similar to the range of bond lengths of 2.522(8)-2.606(8) Å in Ti(S2CNEt2)4 224. In 2, an average Zr-S bond distance of 2.655 Å was observed, which is similar to 2.69 Å in (C5H5)Zr(S2CNMe2)3 244. While no dithiocarbamate ligated complexes of Hf could be found, the average Hf-S bond distance of 2.640 Å in 4 is reasonable given that Hf4+ (r = 0.97 Å) is slightly smaller than Zr 4+ (r = 0.98 Å),100 thus having a slightly shorter bond distance.…”

Formation of Homoleptic Zirconium and Hafnium Dithiocarbamates via Insertion of CS2: Breaking Bonds and Taking Names

“…The slight difference for the latter can be attributed to the more electron-donating isopropyl groups as compared to 1 and 2. The organometallic derivative CpZr(κ 2 -S 2 CNMe 2 ) 3 , reported in 1976, has average Zr−S bonds of 2.690 Å; 16 this difference as compared to 1 and 2 can be attributed to the varying sterics and electronics of the cyclopentadienyl ligand as compared to a fourth dithiocarbamate.…”