Issue 35, 2009
From the journal:

Physical Chemistry Chemical Physics

Tracing dynamic self-disassociation behavior of pyrrole with novel T-shaped hydrogen bonding

Shengtong Sun,a   Hui Tang*a  and  Peiyi Wu*a  

* Corresponding authors

a The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecular Science, Fudan University, Shanghai 200433, People’s Republic of China
E-mail: peiyiwu@fudan.edu.cn

Abstract

Near infrared spectroscopy (NIR) and two-dimensional correlation spectroscopy (2Dcos) were employed to study the dynamic self-disassociation behavior of hydrogen bonds in neat liquid pyrrole during heating. Two regions (7000–6430 cm−1 for NH-related vibrational overtones and 6200–6100 cm−1 for CH-related vibrational overtones and combination modes) are the focus of this paper, whose integral absorption temperature dependence exhibited a continuous convex variation. Two-dimensional correlation analysis has discerned the sequence of change of different aggregated species of pyrrole. Additionally, we carefully investigated the band shift phenomenon of N–H⋯π hydrogen bonding in pyrrole dimers, and assigned this band shift as the result of the transformation of pyrrole dimers from T-shaped geometry to antiparallel geometry.

Graphical abstract: Tracing dynamic self-disassociation behavior of pyrrole with novel T-shaped hydrogen bonding

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/B906773F
Article type
Paper
Submitted
03 Apr 2009
Accepted
26 May 2009
First published
26 Jun 2009

Phys. Chem. Chem. Phys., 2009,11, 7611-7618

Permissions

Request permissions

Tracing dynamic self-disassociation behavior of pyrrole with novel T-shaped hydrogen bonding

S. Sun, H. Tang and P. Wu, Phys. Chem. Chem. Phys., 2009, 11, 7611 DOI: 10.1039/B906773F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements