RuCp* Complexes of Ambidentate 4,5-Diazafluorene Derivatives: From Linkage Isomers to Coordination-Driven Self-Assembly
RuCp* Complexes of Ambidentate 4,5-Diazafluorene Derivatives: From Linkage Isomers to Coordination-Driven Self-Assembly
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DOI：
10.1021/om400846f
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发表时间：
2013-11-11
期刊：
影响因子：
2.8
通讯作者：
Song, Datong
中科院分区：
文献类型：
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作者：
Annibale, Vincent T.;Batcup, Rhys;Song, Datong
研究了{RuCp ~*}（+）片段与几种4，5-二氮杂并芴衍生物的配位化学。这些具有多个配位位点的4，5-二氮杂芘衍生物的双齿性质允许合成不同的连接异构体和自组装大环。用L配体制备了[RuCp*L]（其中L- = 4，5-二氮杂环戊烯）的四聚体（2）和单体（3）。二聚体的头-尾大环[Cp*Ru（LpH）]（2）Cl-2（4）和[Cp*RuLp]（2）（5）与双配位的LpH和Lp-配体（其中LpH = 9-（2-（二苯基膦基）乙基）-4，5-二氮杂异戊烯和Lp= 9-（2-（二苯基膦基）乙基）-4，5-二氮杂异戊烯）一起得到。合成了大体积芳烃取代的Lm，sH配体（其中LmeJ_1 = 3，6-二甲氧基-4，5-二氮杂菲），并与{RuCp ~*}（+）配位得到[Cp ~*Ru（LMesH）]Cl（13）.还证明了[RuCp*（L-Mes）]（14和15）（其中L-Mes（-）= 3，6-dimesityl-4，5-diazeorenide）的不同键合异构体的选择性合成。
The coordination chemistry of the {RuCp*}(+) fragment was studied toward several 4,5-diazafluorene derivatives. The ambidentate nature of these 4,5-diazafluorene derivatives with multiple coordination sites allowed for the syntheses of different linkage isomers and self-assembled macrocycles. Both a tetramer (2) and a monomer (3) of [RuCp*L] (where L- = 4,5-diazafluorenide) were prepared with the L ligand. The dimeric head-to-tail macrocycles [Cp*Ru(LpH)](2)Cl-2 (4) and [Cp*RuLp](2) (5) were obtained with the ditopic LpH and Lp- ligands (where LpH = 9-(2-(diphenylphosphino)ethyl-4,5-diazafluorene and Lp= 9-(2-(diphenylphosphino)ethy1)-4,5-diazafluorenide). The bulky arene-substituted Lm,sH ligand (where LmeJ1 = 3,6-dirnesity1-4,5-diazafluorene) was prepared, and its coordination to {RuCp*}(+) gave [Cp*Ru(LMesH)]Cl (13). The selective syntheses of different linkage isomers of [RuCp*(L-Mes)] (14 and 15) (where L-Mes(-) = 3,6-dimesityl-4,5-diazafluorenide) were also demonstrated.