[(Flu)-(CH2)2-(NHC)-CH2-(NHC)-(CH2)2-(Flu)]2-: an 'all-organic' hybrid and flexible ligand that enwraps a Ca2+ pseudo-tetrahedrally

Sudip Baguli; Shovan Das; Mahua Chakraborty; Santu Goswami; Ayan Datta; Debabrata Mukherjee

doi:10.1039/d2cc04700d

[(Flu)-(CH₂)₂-(NHC)-CH₂-(NHC)-(CH₂)₂-(Flu)]^2-: an 'all-organic' hybrid and flexible ligand that enwraps a Ca²⁺ pseudo-tetrahedrally

Chem Commun (Camb). 2022 Nov 1;58(87):12188-12191. doi: 10.1039/d2cc04700d.

Authors

Sudip Baguli¹, Shovan Das², Mahua Chakraborty¹, Santu Goswami¹, Ayan Datta², Debabrata Mukherjee¹

Affiliations

¹ Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India. d.mukherjee@iiserkol.ac.in.
² School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja SC Mallick Road, Jadavpur, Kolkata, 700032, India. spad@iacs.res.in.

PMID: 36226663
DOI: 10.1039/d2cc04700d

Abstract

A conformationally flexible ligand, [(Flu)-(CH₂)₂-(NHC)-CH₂-(NHC)-(CH₂)₂-(Flu)]^2- (L), that offers four sequential organic donor modules and enwraps a Ca²⁺ pseudo-tetrahedrally in a twisted 'S'-shape is devised. The [(L)Ca] synthesis is intriguingly stepwise involving the intermediate [(LH)Ca(HMDS)], whereas [(LH)Li₂(HMDS)] shows the potential for bimetallic chemistry. The bonding is illustrated by energy decomposition analyses.