Complexation of Zn(OTeF5)2 by weakly coordinating solvents and single-crystal X-ray structures of [Zn(OTeF5)2 (PhNO2)2]2 and Zn(OTeF5)2 (PhN02)3

Thiazyl Trifluoride (NSF3) Adducts and Imidodifluorosulfate (F2OSN-) Derivatives of Hg(OTeF5)2

“…The description of the capping F 5 TeO- groups of ( 3 ) as μ 3 -oxygen bridged is supported by the calculated gas-phase geometry and Mayer bond orders. Teflate groups that form μ 2 -oxygen bridges between mercury centers are encountered in all five structures, a recurrent structural feature in group 11 and 12 metal teflate species. − Compounds 1 – 5 represent a novel class of neutral transition metal complexes with NSF 3 , providing the first examples of NSF 3 coordination to mercury. Compounds 4 and 5 also provide the only examples of F 2 OSN- derivatives of mercury that have been characterized by single-crystal X-ray diffraction.…”

“…The bulky, highly electronegative F 5 TeO- (teflate) group is terminally bonded in the majority of its compounds. However, several examples of μ-oxygen bonded F 5 TeO- groups are known, e.g., Au­(OTeF 5 ) 3 , [AgOTeF 5 ­(C 6 H 5 Cl) 3 ) 2 ] 2 , [AgOTeF 5 ­(1,2-C 2 H 4 Cl 2 )] 2 , , [Zn­(OTeF 5 ) 2 ­(C 6 H 5 NO 2 ) 2 ] 2 , [Ag­(CO)]­[B­(OTeF 5 ) 4 ], and Ag­(CH 2 C1 2 )­Pd­(OTeF 5 ) 4 . , Oxygen-bridged F 5 TeO- ligands have also been observed for several Hg­(II) teflate salts, [N­(CH 3 ) 4 ] 2 ­[Hg 2 (OTeF 5 ) 6 ], Cs 2 [Hg­(OTeF 5 ) 4 ]­·Hg­(OTeF 5 ) 2 , and {Cs 3 [Hg 2 ­(OTeF 5 ) 7 ]­·Hg­(OTeF 5 ) 2 }­·4SO 2 ClF.…”

The First Observation and Structural Characterization of (Formamide)platinum(IV) Complexes

“…Complexes containing weak donor ligands are essential as synthons for synthetic studies and as efficient homogeneous catalysts 1. In recent years they have become a subject of paramount importance for the construction of multi homo‐ and heterometallic systems2 with application in materials science 3,4.…”

“…In recent years they have become a subject of paramount importance for the construction of multi homo‐ and heterometallic systems2 with application in materials science 3,4. Ideally, the complexes with weak donor ligands utilized in these branches of chemistry must be soluble, readily available and contain ligands which are easily replaced 1…”

“…As far as platinum complexes are concerned, an approach for developing compounds with weak donors includes the generation of complexes with antisymbiotic soft platinum centers and hard donor ligands, which interact only poorly and thus the weakly bound donors can be replaced by better ligands 1,5−7. Complexes of both Pt II and Pt IV with anionic monodentate hard O‐donors, for example MeCO 2 − , NO 2 − , NO 3 − , OH − , SO 4 2− , or bidentate anionic hard O,O‐ or O,N‐donors, for example carboxamidates and acetylacetonates, are common 5.…”