The interaction of O {2 [ α (2 hydroxy 5 sulphophenylazo)benzylidene]hydrazino}benzoic acid(ZCN) with cetyl trimethyl ammonium bromide(CTAB) was studied by UV spectra in pH=5 0 buffered solution. The results showed t...The interaction of O {2 [ α (2 hydroxy 5 sulphophenylazo)benzylidene]hydrazino}benzoic acid(ZCN) with cetyl trimethyl ammonium bromide(CTAB) was studied by UV spectra in pH=5 0 buffered solution. The results showed the complex has maximum absorption at 540 and 570 nm with an apparent molar absorptivity of 2 0×10 4 L/(mol·cm). Three constants were determined: binding constant K =2 3×10 5; degree of dissociation α =0 03 and binding number n (CTAB)∶ n (ZCN)=1∶2 5.展开更多
The title compound 2-chloro-4-nitro-N-(5-bromosalicylidene) aniline is preparedby condensation of 5-bromosalicylidehyde and 2-chloro-4-nitro-aniline. C_(13)H_8BrClN_2O_3, M_r=355.58, monoclinic space group P 2_1/n, a=...The title compound 2-chloro-4-nitro-N-(5-bromosalicylidene) aniline is preparedby condensation of 5-bromosalicylidehyde and 2-chloro-4-nitro-aniline. C_(13)H_8BrClN_2O_3, M_r=355.58, monoclinic space group P 2_1/n, a=7.4927 (7), b=16.389(5), c=11.013(5), β=98.2(6)°, V=1338.4, Z=4, D_c=1.764g.cm^(-3), MoK_a(λ=0.71073),μ=34. 569cm^(-1), F.(000)=704, room temperature,final R=0. 053, R_w=0. 057 for 1453 reflections with I≥3σ(I). A total of 2948 in-展开更多
文摘The interaction of O {2 [ α (2 hydroxy 5 sulphophenylazo)benzylidene]hydrazino}benzoic acid(ZCN) with cetyl trimethyl ammonium bromide(CTAB) was studied by UV spectra in pH=5 0 buffered solution. The results showed the complex has maximum absorption at 540 and 570 nm with an apparent molar absorptivity of 2 0×10 4 L/(mol·cm). Three constants were determined: binding constant K =2 3×10 5; degree of dissociation α =0 03 and binding number n (CTAB)∶ n (ZCN)=1∶2 5.
文摘The title compound 2-chloro-4-nitro-N-(5-bromosalicylidene) aniline is preparedby condensation of 5-bromosalicylidehyde and 2-chloro-4-nitro-aniline. C_(13)H_8BrClN_2O_3, M_r=355.58, monoclinic space group P 2_1/n, a=7.4927 (7), b=16.389(5), c=11.013(5), β=98.2(6)°, V=1338.4, Z=4, D_c=1.764g.cm^(-3), MoK_a(λ=0.71073),μ=34. 569cm^(-1), F.(000)=704, room temperature,final R=0. 053, R_w=0. 057 for 1453 reflections with I≥3σ(I). A total of 2948 in-