2022
DOI: 10.1039/d2sc01800d
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Halogen bonding and chalcogen bonding mediated sensing

Abstract: Sigma-hole interactions, in particular halogen bonding (XB) and chalcogen bonding (ChB), have become indispensible tools in supramolecular chemistry, with wide-ranging applications in crystal engineering, catalysis and materials chemistry as well...

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Cited by 76 publications
(76 citation statements)
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“…55 It bears striking similarities with the halogen bond 56 and as such, has received progressive attention from the scientific community. 57…”
Section: Selenonium and Telluronium Salts As Catalystsmentioning
confidence: 99%
“…55 It bears striking similarities with the halogen bond 56 and as such, has received progressive attention from the scientific community. 57…”
Section: Selenonium and Telluronium Salts As Catalystsmentioning
confidence: 99%
“…10,11 Prompted by these considerations, considerable effort has been made to ascertain the mechanisms of action and modes of supramolecular association with biologically-relevant substrates. [12][13][14][15][16][17][18][19][20][21] Over and above biological roles/applications, selenium compounds attract interest in terms of the sensing of anions and molecules, [22][23][24] and, increasingly, catalysis, [25][26][27][28] materials, [29][30][31] covalent organic frameworks (COFs) 32,33 and as fluorescence probes 34all again demanding investigations of the supramolecular chemistry of selenium. Complementing these specialist reviews are more general overviews of the broader roles and implications of chalcogen-bonding.…”
Section: Introductionmentioning
confidence: 99%
“…Geometric parameters (Å, °) for aggregates in[21][22][23][24][25][26][27][28][29][30][31][32][33][34] …”
mentioning
confidence: 99%
“…These doubly bonded systems also have been widely studied [48][49][50] and proved their particular effectiveness in different cases where recognition and binding play a role. 21,51,52 The combined binding of a shared nucleophile by two hydrogen bond donor sites located on the same molecular entity (homoditopic HB/HB supramolecular synthon, D 1 = D 2 = hydrogen in Figure 1c) is commonplace in natural and synthetic systems. 53 The binding by a halogen and a hydrogen atom [54][55][56][57][58] or by a chalcogen and a hydrogen atom [59][60][61][62] (heteroditopic XB/HB or ChB/HB supramolecular synthons, D 1 = halogen or chalcogen, D 2 = hydrogen in Figure 1c) was frequently observed.…”
Section: Introductionmentioning
confidence: 99%
“…For instance, the XB/HB supramolecular synthon can be present in crystals of phenyliodonium salts (see onwards) and recent examples of ChB/HB synthons embrace the structures of benzochalcogenazoles, 63,64 chalcogenadiazoles, 59,60,62 and palladium complexes featuring thiazol-2-amine ligands. 61 The homoditopic XB/XB and ChB/ChB synthons proved in the past years very useful in anion binding 51,52 and unconventional catalyses. 15,56,65 Surprisingly few structures in the Cambridge Structural Database (CSD) are reported wherein a single nucleophile is concomitantly forming an XB and a ChB (Table S1) and in no case the halogen and chalcogen atoms binding the same nucleophile are in the same molecular entity, namely an heteroditopic XB/ChB synthon, as in Figure 1c, is not known.…”
Section: Introductionmentioning
confidence: 99%