A convenient synthesis of pentaphosphorus analogues of ferrocene [Fe(η5-P2C3R3)(η5-P3C2R2)]

1-Triorganylstannyl-1,2,4-triphosphole: A Versatile Starting Material for Phosphorus-Rich Cage Compounds and π-Complexes

“…[1] Hexa-and pentaphosphaferrocene derivatives are formed besides other products from metal-vapor-based compounds such as [ [2] as starting materials. This type of cyclization reaction has also been applied to other reactive iron complexes, [3] and to direct metal-vapor reactions. [4,5] In concurrent, but independent, experiments, the reaction of the mixed alkali metal salts M[3,5-di(tert-butyl)-1,2,4-triphospolyl] (M-2) and M[2,4,5-tri(tert-butyl)-1,3-diphospholyl] (M-3) with transition metal halides was performed and yielded the same hexa-and pentaphosphaferrocene derivatives.…”

“…Atom Sn1 on the other hand is located 182.0(8) pm away from the plane. The sum of the bond angles around P1 of 310.38 suggests a pyramidal sp 3 -bonding situation with the lone pair of electrons of P1 situated out of the plane. This is in clear contrast to the more bulky P-substituted species 1-[bis(trimethylsilyl)-methyl]-3,5-bis(trimethylsilyl)-1,2,4-triphosphole which is planar, and to 1-[bis(trimethylsilyl)methyl]-3,5-di(tert-butyl)-1,2,4-triphosphole (5) that has a bond angle sum of 342.38 around P1.…”

Syntheses and structural characterisation of [Ir4(CO)11(η1-L)] and [Ir4(CO)10(η1-L)2]{L =[Fe(η5-P3C2But2)(η5-P2C3But3)] and [Fe(η5-C5H5)(η5-P3C2But2)]} and [Ir4(CO)11{µ-η1: η1-[Fe(η5Benvenutti1, Hitchcock2, Nixon3 et al. 1996J. Chem. Soc., Dalton Trans.10010View full textAdd to dashboardCite

“…The Ir-C and C-0 bond distances are in the normal range of values found for terminal CO groups. The average Ir-Ir distance is 2.688 A and is within the average range 774( 14) 1.754( 13) 2.313(4) 2.304(4) 2.14(2) 2.05( 2) 2.09(2) 1.57(2) 1.5 l(2) 1.56(2) 1.52(3) 1.38(3) 1.38(3) 1.37(3) 94.6(7) 60.04(3) 59.59 ( 2) 97.9 (5) 101. 1(5) 101.9(5) 1 16.4(2) 97.4( 5) 177( 2) 178( 2) 177( 2) 177( 2) 177( 2) 178(2) 1 24.3 9) 119.9 (11) 122.5( 8) I 1 1.7 ( 12) 105.6(12) 1 13( 2) 108( 2) 110.7( 13) 107( 2) 108( 2) 26) C( 14)-C( 16) C( 18)-C( 19) 1 8)-C( 2 1 ) C(22)-C(23) C(24)-C(25) C( 1 O)-Ir(4)-1r( 1) C(1 l)-Ir(4)-Ir(l) C( 10)-Ir(4)-Ir( 2) C( 1 l)-Ir(4)-Ir( 2) Ir( 1 )-1r(4)-1r( 2) C( 12)-P(l)--lr(2) Fe-P( 1 )-Ir( 2) C( 12)-P(3)-c( 13) O( 2)-C( 2)-I r ( 2) 0(4kC(4FIr( 1) 0( 6)-C( 6)-Ir( 3) 0(8)-C(8)-Ir( 3) O( 10)-C( 10)-1r( 4) C( 14…”

“…There are only three reports involving the interaction of these ligands with carbonyl cluster compounds in the literature. Substitution of ,] for CO in [Ru,(CO),2] was found to give [ R U ~ ( C O ) , ~( ~-~'…”

Ambiphilie, ein charakteristisches Reaktivitätsprinzip π-gebundener Phosphorheterocyclen

“…Die Cyclooligomerisierung von Phosphaalkinen wie t BuCP 1 in der Koordinationssphäre reaktiver Metallkomplexe führt überwiegend zu π‐Komplexen des Cyclodimers 1,3‐Diphosphet1–4 oder des Cyclotrimers 1,3,5‐Triphosphabenzol 5. Im Fall reaktiver Eisenkomplexe6, 7 oder freier Metallatome8 werden jedoch Pentaphosphametallocene wie das Pentaphosphaferrocenderivat 2 erhalten, zu deren Bildung wenigstens eine P‐C‐Dreifachbindung gespalten werden muss (Schema ).…”