CCL: Cnh & Dnh molecules: planar or non-planar

[psavita <savita.pundlik_-_crl-global.com>]

 Sent to CCL by: psavita [savita.pundlik,,crl-global.com]

Hello,

Horizontal plane of symmetry does not necessarily mean the molecule is planar.
This plane ensures symmetric placement of atoms w.r.t. reflection.
Any textbook on molecular symmetry would explain the difference
between C2h and D2h, A D2 group has a C2 axis and two 2-fold axes
perpendicular to C2... etc.


Thanks and good luck,

Savita Pundlik
Computational Materials Research & Innovation Group
Computational Research Laboratories Ltd.,
Taco House, Damle Path, Off Law College Road
Pune - 411004, India.

-----owner-chemistry+savita.pundlik==crl-global.com=-Ìl.net wrote: -----

To: "Pundlik, Savita Sunil " <savita.pundlik=-=crl-global.com>
From: "Olasunkanmi Lukman Olawale walecomuk : yahoo.co.uk"
Sent by: owner-chemistry+savita.pundlik==crl-global.com=-Ìl.net
Date: 06/07/2012 03:27PM
Subject: CCL: Cnh & Dnh molecules: planar or non-planar

Does presence of a horizontal plane of symmetry in a molecule suggests that it is PLANAR: e.g. Cnh and Dnh molecules? I had a molecule in which some atoms are not in the same plane and yet it has a C2h point group. Should I say it is a planar molecule even though some atoms are not in the same plane?
Thank you in anticipation of your contributions.

Olasunkanmi Lukman Olawale

---

Current Address:
Department of Chemistry,
Obafemi Awolowo University,
Ile-Ife, Osun State.
Nigeria.

+234-0-80-52401564 Or +234-0-80-67161091

---