Issue 2, 2009
From the journal:

CrystEngComm

Hydrogen-bond network in isomeric phenylenedipropynoic acids and their DABCO salts. Water mediated helical hydrogen bond motifs†

Rajendran Saravanakumar,a   Babu Vargheseb  and  Sethuraman Sankararaman*a  

* Corresponding authors

a Department of Chemistry, Indian Institute of Technology Madras, Chennai, India
E-mail: sanka@iitm.ac.in
Fax: +91 44 2257 0545
Tel: +91 44 2257 4210

b Sophisticated Analytical Instrument Facility, Indian Institute of Technology Madras, Chennai, India
E-mail: varghese@iitm.ac.in
Fax: +91 44 2257 0545
Tel: +91 44 2257 5939

Abstract

The crystal structures of isomeric phenylenedipropynoic acids (PPA) are reported. 1,2-PPA shows an intra- and intermolecular hydrogen bonded 2D layered sheet structure. 1,4-PPA also has a 2D layered sheet structure. However the hydrogen bond is mediated by water molecules in the lattice. 1,3-PPA has an interpenetrating 3D structure without any void. The lattice of 1,3-PPA consists of two types of helical hydrogen bond network mediated by water molecules. The crystal structures of the DABCO salts of the 1,2-PPA and 1,4-PPA also show an interesting 3D and 2D hydrogen bond network, respectively.

Graphical abstract: Hydrogen-bond network in isomeric phenylenedipropynoic acids and their DABCO salts. Water mediated helical hydrogen bond motifs

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Article information

DOI
https://doi.org/10.1039/B816658G
Article type
Paper
Submitted
23 Sep 2008
Accepted
27 Oct 2008
First published
27 Nov 2008

CrystEngComm, 2009,11, 337-346

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Hydrogen-bond network in isomeric phenylenedipropynoic acids and their DABCO salts. Water mediated helical hydrogen bond motifs

R. Saravanakumar, B. Varghese and S. Sankararaman, CrystEngComm, 2009, 11, 337 DOI: 10.1039/B816658G

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