Unexpected behaviour in derivatives of Barluenga's reagent, Hal(Coll)2X (Coll = 2,4,6-trimethyl pyridine, collidine; Hal = I, Br; X = PF6, ClO4& BF4) | Zendy

Lewis C. F. Morgan | Zendy; Yejin Kim | Zendy; Jack N. Blandy | Zendy; Claire A. Murray | Zendy; Kirsten E. Christensen | Zendy; Amber L. Thompson | Zendy

Open Access

Unexpected behaviour in derivatives of Barluenga's reagent, Hal(Coll)₂X (Coll = 2,4,6-trimethyl pyridine, collidine; Hal = I, Br; X = PF₆, ClO₄& BF₄)

Author(s) -

Lewis C. F. Morgan,

Yejin Kim,

Jack N. Blandy,

Claire A. Murray,

Kirsten E. Christensen,

Amber L. Thompson

Publication year - 2018

Publication title -

chemical communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.837

H-Index - 333

eISSN - 1364-548X

pISSN - 1359-7345

DOI - 10.1039/c8cc05430d

Subject(s) - reagent , lattice vibration , pyridine , synchrotron radiation , crystallography , chemistry , lattice (music) , synchrotron , materials science , medicinal chemistry , condensed matter physics , optics , physics , phonon , acoustics

For the collidine analogues of Barluenga's Reagent (IPy 2 BF 4 ) reported, a flat cation is necessary for the generation of a modulated phase, in keeping with the "Ratchet Model" theory [Kim et al., Crystal Growth & Design, 2014, 14, 6294]. Attempts to study "diffuse modulation" in Br(Coll) 2 ClO 4 have shown that these non-Bragg features disappear very rapidly on exposure to synchrotron radiation, an effect thought to be caused by the radiation damage disrupting the lattice vibrations that cause the modulation.

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