A new half-condensed Schiff base platform: structures and sensing of Zn 2+ and H 2 PO 4 − ions in an aqueous medium
A newly designed and synthesized half-condensed organic moiety 2-hydroxy-5-methyl-3-[(2-phenylamino-phenylimino)-methyl]-benzaldehyde ( HL′ ) and a Zn2L4 complex sequentially detect Zn 2+ and H 2 PO 4 − ions as low as 1.13 nM and1.23 μM, respectively. HL′ and a dinuclear Zn( ii ) complex of in situ...
Saved in:
Published in | Dalton transactions : an international journal of inorganic chemistry Vol. 49; no. 26; pp. 8991 - 9001 |
---|---|
Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
07.07.2020
|
Online Access | Get full text |
Cover
Loading…
Summary: | A newly designed and synthesized half-condensed organic moiety 2-hydroxy-5-methyl-3-[(2-phenylamino-phenylimino)-methyl]-benzaldehyde (
HL′
) and a
Zn2L4
complex sequentially detect Zn
2+
and H
2
PO
4
−
ions as low as 1.13 nM and1.23 μM, respectively.
HL′
and a dinuclear Zn(
ii
) complex of
in situ
generated
L
−
in a solution formulated as
Zn2L4
under investigation were characterized by physicochemical and spectroscopic studies along with detailed structural analyses by single-crystal X-ray crystallography. The selectivity and sensitivity of
HL′
towards Zn
2+
ions and of the
Zn2L4
complex towards H
2
PO
4
−
ions are based on CHEF and
via
displacement pathways, respectively. Dual sensing of Zn
2+
ions and H
2
PO
4
−
ions in an aqueous medium
via “Green-Blue-Green
” emission with the reversible transformation of
in situ
formed
HL′
to
HL
was established by detailed electronic absorption and emission spectroscopic studies. This non-cytotoxic probe (
HL′
,
i.e.
produced
HL
in solution) and
Zn2L4
complexes are able to monitor the subcellular distribution changes of Zn
2+
and H
2
PO
4
−
ions, respectively, by fluorescence microscopy using the human semen sample. |
---|---|
ISSN: | 1477-9226 1477-9234 |
DOI: | 10.1039/D0DT01594F |