with the formation of FeG. This metallogel can sense H 2 PO 4
− selectively and
sensitively. The detection limit of FeG for H 2 PO 4
− is 1.0 Â 10
−6 mol L
−1 . As a
result, metallogel FeG shows potential application as a convenient and reversible
H 2 PO 4
− test kit.
The robust organogel of 89 (Scheme 3.19) in DMF is strong blue fluorescent.
Hydrogen bonding, van der Waal forces and p–p interactions between the
O
O
O
HN
NH
O
OC 16 H 33
C 16 H 33 O
OC 16 H 33
NH
O
HN O
OC 16 H 33
OC 16 H 33
C 16 H 33 O
89
N
N
N
H
N
OC 16 H 33
OC 16 H 33
C 16 H 33 O
88
Scheme 3.19 Molecular structures of 88 and 89
Fig. 3.34 Proposed self-assembly and reversible stimuli-response mechanism of 88. Reprinted
with permission from [116]. Copyright © 2017 Elsevier B.V.
104
3 Metal–Organic Gels