A ferrocenyl-bridged intramolecularly coordinated bis(diorganostannylene): Synthesis, molecular structure and reactivity of [4-t-Bu-2,6-{P(O)(O-i-Pr)2C6H2Sn}C5H4]2Fe

[{2,6‐(Me2NCH2)2C6H3}Sn]2: An Intramolecularly Coordinated Diorganodistannyne

“…An alternative concept for the stabilization of, for instance, reactive heavy carbene analogues is the use of intramolecularly coordinating "built-in" ligands. Prominent representatives of these are N,C,N-and O,C,O-coordinating pincer-type ligands, which have been employed for the synthesis of heteroleptic stannylenes such as {2,6-(Me 2 NCH 2 ) 2 C 6 H 3 }SnCl, [29] [2,6-{P(O)(OR) 2 } 2 -4-tBu-C 6 H 2 ]SnCl (R = Et, iPr), [30,31] and {2,6-(ROCH 2 ) 2 C 6 H 3 }SnCl (R = Me, tBu). [32] From systematic studies on the reactivity of these compounds and their transition-metal complexes, we report here the synthesis of the organotin(I) species [{2,6-(Me 2 NCH 2 ) 2 C 6 H 3 }Sn] 2 and discuss, on the basis of singlecrystal X-ray diffraction analysis and MO calculations, the influence of intramolecular N!Sn coordination on the SnÀ Sn bond.…”

[{2,6‐(Me2NCH2)2C6H3}Sn]2: ein intramolekular koordiniertes Diorganodistannin

“…B. schweren Carbenanalogen ist die Verwendung von intramolekular koordinierenden "built-in"-Liganden. Bekannte Vertreter sind N,C,N-und O,C,O-koordinierende Zangenliganden, die unter anderem zur Synthese der heteroleptischen Stannylene {2,6-(Me 2 NCH 2 ) 2 C 6 H 3 }SnCl, [29] [2,6-{P(O)-(OR) 2 } 2 -4-tBuC 6 H 2 ]SnCl (R = Et, iPr) [30,31] und {2,6-(RO-CH 2 ) 2 C 6 H 3 }SnCl (R = Me, tBu) [32] (1) ) und Ar*SnSnAr* (3.066(1) ) gefunden wurden (Ar' = C 6 H 3 -2,6-(C 6 H 3 -2,6-iPr 2 ) 2 , Ar* = C 6 H 2 -2,6-(C 6 H 3 -2,6-iPr 2 ) 2 -4-SiMe 3 ). [9,15] Die intramolekularen Sn-N-Abstände variieren zwischen 2.585(9) für Sn(2)-N(3) und 2.631(9) für Sn(1)-N(1).…”

π‐Bonding in Complexes of Benzannulated Biscarbenes, ‐germylenes, and ‐stannylenes: An Experimental and Theoretical Study

“…While some bis(diorganostannylene) ligands are known, [8] only few examples for potentially chelating benzannulated Keywords: carbene analogues · coordination modes · stannylenes · tin Abstract: Benzannulated bisstannylenes, exhibiting a CH 2 CA C H T U N G T R E N N U N G (CH 3 ) 2 CH 2 linking unit and CH 2 tBu (1) or CH 2 CH 2 CH 2 NMe 2 (2) N-substituents, and their molybdenum tetacarbonyl complexes 3 and 4 have been prepared. The complexes 3 and 4 exhibit remarkably short MoÀE bond lengths compared to the related biscarbene and bisgermylene complexes.…”