Structural characterization of the anionic halfsandwich complex and its reactivity towards stannanes and distannanes

Iron ansa half sandwich complexes bearing a bridging distannadiyl moiety

“…The incorporation of the sterically demanding half sandwich fragment imposes tinetin separation of 2.8726(3) A, which is longer than that of starting compound tBu 4 Sn 2 Cl 2 (2.8299(5) A). A similar distortion based on sterical reasons was observed before for the related molybdenum complex [(h 5 -C 5 H 5 )Mo(CO) 3 (SntBu 2 SntBu 2 Cl)] (2.8701(3) A) [37].…”

Synthesis and Reactivity of a Dilithiated Molybdenum Half‐Sandwich Complex

“…The C10–Sn2 separation of 2.153(3) Å is almost identical to that reported for the analogous tungsten compound [2.147(6) Å]. The Mo1–Sn1 bond length of 2.8443(4) Å is not influenced by the substitution at the cyclopentadienyl ring and exhibits a similar value as in the unsubstituted complex[(η 5 ‐C 5 H 5 )(SnMe 3 )(CO) 3 Mo] [2.8546(3) Å] 29…”

Iron distannanes (η5-C5H5)Fe(CO)2SntBu2SntBu2X, (X=Cl, OMe): Thermal and photochemical transformations to iron stannylstannylenes

“…The SneSn bond distance in 1 is also slightly longer than a SneSn distance [2.8701(3) A], in recently reported Mo distannyl complex (h 5 -C 5 H 5 ) Mo(CO) 3 Sn t Bu 2 Sn t Bu 2 Cl (4) [19]. This may be due to a difference in the (h 5 -C 5 H 5 )-MeSneSn torsion angles.…”