abstract
The sonochemical reaction between silver salt, 1,3-bis(4-pyridylpropane (bpp) and trans,trans-muconic acid (H2muc) formed an Ag(I) coordination polymer with a 3D supramolecular sandwich architecture, {[Ag8(bpp)8(H2O)3].(muc)4.29(H2O)}n, (1) consisting of the silver-bpp cationic host that alternates with 2D water-muc guest anionic layers. The latter is formed by H-bonded water molecules-anions comprising hexagonal (H2O)6 clusters. The Hirshfeld surface and fingerprint plots have been used to quantify the weak intermolecular interactions in the crystal packing arrangement. The study showed that intermolecular hydrogen bonds are the most critical in constructing the titled supramolecular complex, accounting for 51.2% of the total Hirshfeld surface. Several spectrofluorimetric methods have been employed to investigate the binding interaction between Bovine Serum Albumin (BSA) and the titled complex. The complex induced significant fluorescence quenching of BSA, indicating a strong binding affinity for the protein. Static or ground state complex formation was envisaged as the primary quenching mechanism when the complex interacts with BSA. In addition, the Ag compound also offers photocatalytic properties by degrading the toxic organic methylene blue dye.
keywords
BOVINE SERUM-ALBUMIN; CATALYTIC-PROPERTIES; CRYSTAL-STRUCTURES; SILVER(I); LIGAND; DRUG; NANOPARTICLES; PHOTODEGRADATION; FLUORESCENCE; CARMOISINE
subject category
Chemistry
authors
Nandi, L; Barman, S; Das, A; Brandao, P; Zangrando, E; Basu, A; Dalai, S
our authors
Paula Cristina Ferreira da Silva Brandão
Assistant ResearcherProjects
CICECO - Aveiro Institute of Materials (UIDB/50011/2020)
CICECO - Aveiro Institute of Materials (UIDP/50011/2020)
Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)
acknowledgements
The authors thank UGC and DST, New Delhi, India, for providing special assistance and infrastructural support to the Department of Chemistry, Vidyasagar University, via SAP and FIST programs. USIC, Vidyasagar University, is gratefully acknowledged for providing instrumental facilities. We thank Dr. Subhasish Roy, BITS, Goa Campus, for his help with data analysis. Shovan Barman is thankful to UGC for providing a fellowship. Paula Brandao gratefully acknowledges the financial support of this work by the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020 & amp; LA/P/0006/2020, financed by national funds through the FCT/MCTES (PIDDAC) .