Directed reactivity at a vanadium(ii) thiolate center: synthesis and structure of a novel vanadium thiolate complex and its reaction product with azobenzene

Effects of 2,6‐Dichlorophenyl Substituents on the Coordination Chemistry of Pyridine Dipyrrolide Iron Complexes

“…Many of these examples feature interactions with solvent molecules (dichloromethane or chloroform), but restricting the search further to include only Fe−Cl contacts between first row transition metals and aryl chlorides returned 20 published structures. The M−Cl distances in these complexes extend from 2.30 Å to 3.09 Å, [15–23] indicating that the Fe−Cl interaction in ( Cl2Ph PDP Ph )Fe(OEt 2 ) falls right in the center of this range. The only reported examples for iron exhibit Fe−Cl distances of 2.31 Å 15 and 2.73 Å [16] …”

Synthesis and Structure of a Series of New d1-Aryl Imido−Vanadium(IV) Complexes Stabilized by N-Donor Ligands

“…As part of an ongoing study of vanadium alkoxide, diamide, poly-yne, or iminoacyl 16 complexes, we recently described the synthesis and molecular structure of the new terminal imido complex [V(NAr)Cl 2 (NHMe 2 ) 2 ] (Ar = 2,6- i -Pr 2 -C 6 H 3 ), one of the very few Cp-free vanadium(IV) terminal imido compounds that have been structurally characterized. − …”

“…As part of an ongoing study of vanadium alkoxide, 13 diamide, 14 poly-yne, 15 or iminoacyl 16 complexes, we recently described the synthesis and molecular structure of the new terminal imido complex [V(NdAr)Cl 2 (NHMe 2 ) 2 ] (Ar ) 2,6i-Pr 2 -C 6 H 3 ), 7 terminal imido compounds that have been structurally characterized. [17][18][19][20] In this paper we report on the synthesis of a series of new aryl imido derivatives of vanadium(IV) prepared by an extremely convenient one-pot reaction, together with some aspects of their coordination chemistry toward neutral N-donor ligands: pyridine (Py), bipyridine (bipy), and N,N,N′,N′-tetramethylethane-1,2-diamine (tmeda).…”

Trinuclear Early/Late‐Transition‐Metal Thiolate Complexes

“…There is an inversion centre at the vanadium atom, and 1 can be viewed as consisting of a distorted-octahedral vanadium atom sharing parallel trigonal faces with two cobalt-centred [Co (1) [26] and [V(Spy) 3 ] -{V-S: 254.5 pm (avg.)} [27] and in [V(SC 6 H 3 -2,6-Cl 2 ) 2 -(tmeda)] {V-S: 246.4(2) and 246.8(2) pm} [28] but are slightly longer than in [V(μ-SArЈ)I] 2 {ArЈ = C 6 H 3 -2,6-(C 6 H 3 -2,6-iPr 2 ) 2 ; V-S: 239.6 and 241.3(1) pm}, which comprises a η 6 -coordination of the vanadium by an aryl ring. [21] They are significantly longer than those observed in the homoleptic tetrahedral V 4+ complex [V(StBu) 4 ] {V-S: 221.8(2) pm} [22] and in [V{S-2,6-(SiMe 3 ) 2 C 6 H 3 } 3 (thf)] {V-S: 227.7-232.8(1) pm}.…”