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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 (CC BY 3.0).
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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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