Designing isometrical gel precursors to identify the gelation pathway for nickel-selective metallohydrogels.
Two novel multi-responsive metallohydrogels, namely, 2-PF-Ni and 3-PF-Ni, were successfully constructed from phenylalanine derivatives. The 2-PF gelator shows specific responses to Ni2+; particularly, 2-PF-Ni is lavender colored, which has been rarely reported among hydrogels triggered by Ni2+. 3-PF-Ni is light green and exhibits perfect thixotropy. This paper provides insights into the gelation mechanisms of these two metallogels.
College of Chemistry and Chemical Engineering, Changsha 410083, China and College of Chemistry and Chemical Engineering, University of South China, Hengyang 421000, China. weichw@hotmail.com.
Xiaojuan
X
Wang
College of Chemistry and Chemical Engineering, Changsha 410083, China.
Ting
T
He
College of Chemistry and Chemical Engineering, Changsha 410083, China.
Lan
L
Yang
College of Chemistry and Chemical Engineering, Changsha 410083, China.
Huiqiong
H
Wu
College of Chemistry and Chemical Engineering, Changsha 410083, China.
Jiafu
J
Yin
College of Chemistry and Chemical Engineering, Changsha 410083, China and State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China. yzhangcsu@mail.csu.edu.cn.
Rujuan
R
Shen
College of Chemistry and Chemical Engineering, Changsha 410083, China.
Juan
J
Xiang
College of Chemistry and Chemical Engineering, Changsha 410083, China.
Yi
Y
Zhang
College of Chemistry and Chemical Engineering, University of South China, Hengyang 421000, China. weichw@hotmail.com.
Chuanwan
C
Wei