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Polymers 2011, 3(4), 1652-1661; doi:10.3390/polym3041652
Article

Novel Countercation in MMX-Type Mixed-Valence Chain Compound: Coexistence of Neutral and Protonated Amino Substituents

1,* , 2
, 2
, 1
 and 1,*
1 Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan 2 School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
* Authors to whom correspondence should be addressed.
Received: 2 August 2011 / Revised: 7 September 2011 / Accepted: 27 September 2011 / Published: 6 October 2011
(This article belongs to the Special Issue Coordination Polymers)
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Abstract

The first MMX-type quasi-one-dimensional (Q1D) Pt chain complex (MMX chain) that contains a mono-protonated diamine as countercation, {o-(H3NC6H4NH2)}4[Pt2(pop)4I]·H2O (pop = P2H2O52–), was synthesized. According to the crystal structural analysis, –NH2 group was hydrogen-bonded to either lattice H2O molecule or –NH3+ group in addition to typical hydrogen bond between –NH3+ group and pop ligand. To control the partial deprotonation of the countercation will be an important method for achieving the high-conductive MMX-chain polymer by the hole doping.
Keywords: MMX-chain complex; 1D structure; partial deprotonation; hydrogen bond MMX-chain complex; 1D structure; partial deprotonation; hydrogen bond
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Iguchi, H.; Jiang, D.; Xie, J.; Takaishi, S.; Yamashita, M. Novel Countercation in MMX-Type Mixed-Valence Chain Compound: Coexistence of Neutral and Protonated Amino Substituents. Polymers 2011, 3, 1652-1661.

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