A route to η2-alkyne complexes of vanadium(I): Crystal structure of trans-[IV(CO)2(PMe2Ph)2(2-butyne)]

MO Rationalization of the Synthesis and Structure of V(N-2,6-iPr2C6H3)Cl(CO)2(PMe3)2 Complex

“…The process is partially prevented under a CO atmosphere. This decomposition occurs even in the solid state at 0 °C, and this behavior is similar to that observed for the compounds V(RC⋮CR‘)X(CO) 2 (PMe 3 ) 2 . The IR spectrum of 1 displays a strong band at 1938 cm -1 ( ν (CO), Nujol).…”

“…This decomposition occurs even in the solid state at 0 °C, and this behavior is similar to that observed for the compounds V(RCt CR′)X(CO) 2 (PMe 3 ) 2 . 41 The IR spectrum of 1 displays a strong band at 1938 cm -1 (ν(CO), Nujol). This value fits well within the ν(CO) range (1901-1928 cm -1 , pentane) reported for V(RCtCR′)X(CO) 2 (PMe 3 ) 2 compounds, and it is higher than that of CpV(N-2,6-i Pr 2 C 6 H 3 )(CO)-(PMe 3 ) 32 (1885 cm -1 ).…”

Ge2H2 a π-ligand in organometallic chemistry

“…There are no specific trends found in the M-Ge distances of these complexes. The Pt-Ge distance in compound 13a is slightly longer compared to the experimental values in cis-(Me 2 PhGe) 2 Pt-(PMe 2 Ph) 2 (1) Ge ( (1) Ge (2) top view top view 9a 9b…”

“…Examples relevant to this study include [V(CO) 2 (P(PhMe 2 )) 2 (I)(MeC"CMe)] (1), [Rh-(P( i Pr) 3 ) 2 (Cl)(Me 3 SiC"CC 2 SiMe 3 )] (2), and [Ni(PPh 3 ) 2 -(HC"CH)] (3) [2][3][4]. There are many theoretical studies available for these organometallic p-complexes [5].…”

“…The complexes which contain isomer 5 as a p-ligand are denoted as 8b-13b. These complexes have been chosen based on the known alkyne analogues (1)(2)(3). Since, in the present study an attempt has been made to find the trends in a given row (3d transition metals) and in a given group (Ni-Pt), the complex 2 has been replaced by 10a.…”