Ionic complex of a rhodamine dye with aggregation-induced emission properties.
Faraday Discuss
; 196: 177-190, 2017 02 22.
Article
in En
| MEDLINE
| ID: mdl-27892580
ABSTRACT
An AIE-active rhodamine based luminogen was prepared via a complexation reaction between non-emissive rhodamine hydrazide (RdH) and bulky camphorsulfonic acid (CSA). Besides acting to open the spirolactam ring of RdH, CSA also imposes a rotational restriction on the resultant ionic complex, RdH(CSA)x. Without CSA, the analogous complex RdH(HCl)3 is a luminogen with aggregation-caused quenching (ACQ) properties. The ionic bonds of RdH(CSA)3 are sensitive to several external stimuli and therefore it is a luminescent sensor for metal ions, organic amines and the blood protein bovine serum albumin (BSA). Besides being a sensor for BSA, the ionic RdH(CSA)3 is also a denaturant capable of uncoiling the peptide chain of BSA.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Rhodamines
/
Serum Albumin, Bovine
/
Fluorescent Dyes
/
Amines
/
Metals
Limits:
Animals
Language:
En
Journal:
Faraday Discuss
Journal subject:
QUIMICA
Year:
2017
Document type:
Article
Affiliation country:
China