Direct observation of the disorder of the methyl group of (R)-1,2-diaminopropane ligand in the quasi-1D bromo-bridged Ni(III) complex by STM

Mari Sasaki; Shinya Takaishi; Hitoshi Miyasaka; Ken-ichi Sugiura; Masahiro Yamashita

doi:10.1021/ja053715g

Direct observation of the disorder of the methyl group of (R)-1,2-diaminopropane ligand in the quasi-1D bromo-bridged Ni(III) complex by STM

J Am Chem Soc. 2005 Nov 2;127(43):14958-9. doi: 10.1021/ja053715g.

Authors

Mari Sasaki¹, Shinya Takaishi, Hitoshi Miyasaka, Ken-ichi Sugiura, Masahiro Yamashita

Affiliation

¹ Department of Chemistry, Tokyo Metropolitan University, Hachioji 192-0097, Japan.

PMID: 16248598
DOI: 10.1021/ja053715g

Abstract

Scanning tunneling microscopy (STM) has been measured in quasi-one-dimensional (Quasi-ID) bromo-bridged Ni(III) complexes. In the STM image of [Ni(pn)2Br]Br2 (pn = (R)-1,2-diaminopropane), the bright spots are fluctuated zigzags. Such a result indicates that the methyl groups of the pn ligands are not arranged on the right- and left-hand alternatively along the chains, but in the domain structures or fluctuated structures. This is the first direct observation of the disorder of the methyl group of pn ligands in real space.