The first osmium(II), ruthenium(II) and iron(II) complexes of [3 ]cyclophanes (n=2–4): synthesis and electrochemical study
作者:Teizi Satou、Ko Takehara、Mihoko Hirakida、Youichi Sakamoto、Hiroyuki Takemura、Hirokazu Miura、Mie Tomonou、Teruo Shinmyozu
DOI:10.1016/s0022-328x(98)01025-0
日期:1999.3
7 and 0.1–0.4 ppm for Fe(II) and Ru(II) complexes, respectively, whereas those of Os(II) complexes are ca. −0.2–0.1 ppm. The complexation shifts of the 13C-NMR signals of the tertiary aromatic carbons of the metal-bound benzene ring are ca. 39–42 and 45–50 ppm for Ru(II) and Os(II) complexes, respectively. Thus the 1H- and 13C-NMR chemical shifts of the metal-bound aromatic hydrogens and carbons are
(η 6 -C 6 H ^ 6)(η 6 - [3 Ñ ]环芳)钌(II)[BF 4 ] 2和相应的OS(II)[PF 6 ] 2,以及双(η 5 -C 5 ħ 5)(η 6,η 6 - [3 ñ ]环芳)的Fe(II)的Fe(II)[PF 6 ] 2([3 ñ ]环芳= [3 2 ](1,4)环芳2,[3 3 ](1,3,5)Cyclphane 3,[34 ](1,2,3,5)环芳4,[3 4 ](1,2,4,5)环芳5),已经合成和表征。与金属结合的芳族质子(H b)的1 H-NMR信号的络合位移为。Fe(II)和Ru(II)配合物的浓度分别为0.5-0.7和0.1-0.4 ppm,而Os(II)配合物的浓度约为0.5-0.7 ppm。−0.2–0.1 ppm。与金属结合的苯环的叔芳族碳原子的13 C-NMR信号的络合位移为。Ru(II)和Os(II)配合物的浓度分别为39–42和45–50