Polymorphism of Ag29(BDT)12(TPP)43− cluster: interactions of secondary ligands and their effect on solid state luminescence

Abhijit Nag; Papri Chakraborty; Mohammad Bodiuzzaman; Tripti Ahuja; Sudhadevi Antharjanam; Thalappil Pradeep

doi:10.1039/C8NR02629G

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Polymorphism of Ag₂₉(BDT)₁₂(TPP)₄³⁻ cluster: interactions of secondary ligands and their effect on solid state luminescence†

Abhijit Nag,^a Papri Chakraborty,^a Mohammad Bodiuzzaman,^a Tripti Ahuja,^a Sudhadevi Antharjanam^b and Thalappil Pradeep

*^a

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* Corresponding authors

^a DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
E-mail: pradeep@iitm.ac.in
Fax: +91-44 2257-0545

^b Sophisticated Analytical Instruments Facility (SAIF), Indian Institute of Technology Madras, Chennai 600036, India

Abstract

We present the first example of polymorphism (cubic & trigonal) in single crystals of an atomically precise monolayer protected cluster, Ag₂₉(BDT)₁₂(TPP)₄³⁻. We demonstrate that C–H⋯π interactions of the secondary ligands (TPP) are dominant in a cubic lattice compared to a trigonal lattice, resulting in a greater rigidity of the structure, which in turn, results in a higher luminescence efficiency in it.

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Article information

DOI: https://doi.org/10.1039/C8NR02629G
Article type: Communication
Submitted: 01 Apr 2018
Accepted: 07 May 2018
First published: 08 May 2018

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Nanoscale, 2018,10, 9851-9855

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Polymorphism of Ag₂₉(BDT)₁₂(TPP)₄³⁻ cluster: interactions of secondary ligands and their effect on solid state luminescence

A. Nag, P. Chakraborty, M. Bodiuzzaman, T. Ahuja, S. Antharjanam and T. Pradeep, Nanoscale, 2018, 10, 9851 DOI: 10.1039/C8NR02629G

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