异的合成的化合物由使用钛[Ti(η的5 -C 5 H ^ 4 PPH 2)2(SR)2 ](R =的Et或PH)作为metalloligands。[{Mo(CO)4 } 2 {µ-(Ph 2 PC 5 H 4)2 Ti(SPh)2 }]和[(OC)4 Mo(µ-Ph 2 PC 5 H 4)2 Ti的晶体结构(μ-SPh)2 Pt(C 6 F 5)2 ]
摘要:
络合物[(OC)4 Mo(µ-Ph 2 PC 5 H 4)2 Ti(SR)2 ](R = Et 1或Ph 2),[{Mo(CO)4 } 2 {µ-(Ph 2 PC 5 H 4)2 Ti(SR)2 }](R = Et 3或Ph 4)和[(OC)4 Mo(µ-Ph 2 PC 5 H 4)2 Ti(µ-SPh)2 M(C 6 F 5)2 ](M =铂已经制备并表征了5或Pd 6)。络合物1和2是由钛[Ti(η的反应而得到的5 -C 5 H ^ 4 PPH 2)2(SR)2 ]和[沫(CO)4:1分摩尔比(NBD)](NBD =降冰片二烯)在1通过两个由P原子配位的环戊二烯基二苯基膦取代nbd。硫醇盐配体中的S原子充当路易斯碱的能力导致核的进一步增加。因此,当反应以1:3的摩尔比进行时,异三核配合物3和4获得了。4的晶体结构表明,钛单核化合物对两个Mo(CO)4片段起对称的S,P桥连四齿配体的作用。化合物2与顺式-[M(C
Thiolate derivatives of bis(diphenylphosphinocyclopentadienyl)titanium TiPt and TiPd heterobimetallic compounds
摘要:
Reactions of [{eta(5)-C5H4P(C6H5)(2)}2TiCl2] with HSR in the presence of Et(3)N gave the new compounds [{eta(5)-C5H4P(C6H5)(2)}Ti-2(SR)(2)] (R = CH2C6H5 (1), C6H5, (2), CH2CH3 (3), C6F5 (4) and [{eta(5)-C5H4P(C6H5)(2)}2TiCl(SC6H11)] (5). The complex [{eta(5)-C5H4P(C6H5)(2)}Ti-2(SC6F5)(2)] can be prepared in higher yield by reaction of TlSC6F5 with [{eta(5)-C5H4P(C6H5)(2)}2TiCl2] in toluene. These compounds are of interest as metalloligands to form bimetallic and trimetallic species. The treatment of [{eta(5)-C5H4P(C6H5)(2)}2TiCl2] or [{eta(5)-C5H4P(C6H5)(2)}Ti-2(SC6H5)(2)] with cis-[M(C6F5)(2)(THF)(2)] gave the new heterobimetallic complexes [Cl2Ti{mu-C5H4P(C6H5)(2)}(2)M(C6F5)(2)] [M = Pt (6) or Pd (7)] and [(C6H5S)(2)Ti{mu-C5H4P(C6H5)(2)}Pt-2(C6F5)(2)] (8). In all cases the THF of the cis-[M(C6F5)(2)(THF)(2)] was easily replaced by the phosphine rather than chloride or thiolate. The compounds have been characterized by H-1, P-31 and F-19 NMR spectroscopies and FAB mass spectrometry.