Formation of 1,3‐Diphosphacyclobutadiene Complexes from Phosphaalkynes and Their Coordination Behavior
作者:Eva‐Maria Rummel、Maria Eckhardt、Michael Bodensteiner、Eugenia V. Peresypkina、Werner Kremer、Christian Gröger、Manfred Scheer
DOI:10.1002/ejic.201301299
日期:2014.4
central W(CO)4 moiety. The reactions of 1a with CuI halides result in different products depending on the stoichiometry. In a 1:1 ratio, the dimeric compounds 3a–c [(Cp″′Co)(μ,η4:1‐PCtBu}2)Cu(μ‐X)]2 (3a: X = Cl; 3b: X = Br, 3c: X = I) were isolated, whereas an excess of CuX gave the two‐dimensional polymers [(Cp″′Co}μ3,η4:1:1‐(PCtBu)2})2(Cuμ3‐X})4]n (6a: X = Cl, 6b: X = Br, 6c: X = I). From the
通过使用[(CP“'Co)的2 TOL](CP”'=η 5 -C 5 H ^ 2吨卜3,TOL =甲苯),一个新的1,3- diphosphete配合物[CP“'的Co合成( η 4 -P 2 c ^ 2吨卜2)](1A)和[CP“'的Co(η 4 -P 2 c ^ 2我镨2)](图1b)被发现,并且它们与路易斯酸反应W(CO )研究了4和卤化铜I。1b与W(CO)4的反应(nbd)(nbd =降冰片二烯)导致络合物[(Cp'''Co)(μ,η4 :1- PC i Pr} 2)] 2 W(CO)4(2)与两个二磷酸酯络合物1b配位反式至中心W(CO)4部分。1a与Cu I卤化物的反应会根据化学计量产生不同的产物。二元化合物3a – c [(Cp'''Co)(μ,η4 :1- PC t Bu} 2)Cu(μX)] 2(3a:X = Cl; 3b:X = Br的,3c中:X = I)分离,