二氯[1,3-双(2,4,6-***基***)-2-咪唑烷亚基][3-(2-***基)亚丙基]钌(II)Ruthenium,[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(3-methyl-2-buten-1-ylidene)(tricyclohexylphosphine)-,(SP-5-41)-)