spectroelectrochemical studies of 14 a-c show the appearance of an intense low-energy band at 7400-7900 cm-1 that is redshifted upon π-system lengthening and alkyl substituent incorporation. The cubic nonlinear optical properties of 9 d, 9 e, 14 a-c, 15 a-c, 16 b, 17 a, b, and 18 were assayed by femtosecond Z-scan studies at benchmark wavelengths (750 and 800 nm) in the near-IR region, with nonlinearity increasing
反式-[Ru(C≡CC6H4 -4-CHO)(C≡CC6H4 -4-R)(dppe)2]的合成(R = H(9 a),
NO2(9 b),CHO(9 c),C≡CC6H3 -3,5-Et2(9 d),(E)-CHCHC6H4 -4-tBu(9 e); dppe = 1,2-双(
二苯基膦基)
乙烷),反式[Ru(C≡CC6H4 -4-R)Cl(dppe)2](R =C≡CC6H3 -3,5-Et2(11 a),(E)-CHCHC6H4 -4-tBu(11 b),(E)-CHCHC6H4 -4- (11 c)),1,2,4,5- 反式-[(dppe)2(RC6 H4C≡C)Ru C≡CC6H4 -4-(E)-CHCH}]} 4 C6 H2(R = H(14 a),C≡CC6H3 -3,5-Et2(14 b),(E)-CHCHC6H4 -4 -tBu(14 c)),1-I-3,5-