Issue 44, 2022

A new supramolecular bonding motif involving NH bonds of ammonium salts and macrocycles derived from platinum corners and butadiynediyl linkers

Abstract

CuI catalyzes reactions of cis-(R2C(CH2PPh2)2)Pt(C[triple bond, length as m-dash]CC[triple bond, length as m-dash]CH)2 and cis-(R2C(CH2PPh2)2)PtI2 in secondary amine solvents HNR’2 to give the title adducts [(R2C(C[upper bond 1 start]H2PPh2)2)Pt(C[upper bond 1 end][triple bond, length as m-dash]CC[triple bond, length as m-dash]C)]4·(H2NR’2+I)n (R/R’/n = Me/Et/1, Me/((CH2CH2)2O)0.5/3, Et/Et/1, Et/CH2CH[double bond, length as m-dash]CH2/1; 92–42%). Crystal structures of these or closely related species establish folded Pt4 cores containing ammonium cation guests, with NH/ and NCH/C[triple bond, length as m-dash]C hydrogen bonding. DOSY NMR experiments show that the host/guest relationship can be maintained in solution.

Graphical abstract: A new supramolecular bonding motif involving NH bonds of ammonium salts and macrocycles derived from platinum corners and butadiynediyl linkers

Supplementary files

Article information

Article type
Communication
Submitted
16 Aug 2022
Accepted
28 Sep 2022
First published
21 Oct 2022

Dalton Trans., 2022,51, 16795-16799

Author version available

A new supramolecular bonding motif involving NH bonds of ammonium salts and macrocycles derived from platinum corners and butadiynediyl linkers

B. K. Collins, N. Bhuvanesh and J. A. Gladysz, Dalton Trans., 2022, 51, 16795 DOI: 10.1039/D2DT02680E

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