Reciprocal Net

Welcome to Reciprocal Net!

Become a Partner | Search Structure | Contact Us

Reciprocal Net a distributed crystallography network for researchers, students and the general public

	About Reciprocal Net
	Site Network
	Learn About
	Help

Reciprocal Net,
home of the award winning
Common Molecules Collection

Reciprocal Net is funded by the U.S. National Science Foundation as part of the National Science Digital Library project.

Highlight

Methanol (h4-phthalocyaninato)-
magnesium (II)

Dr. Ilia Guzei
Molecular Structure Lab, Univ. of Wisconsin-Madison
Prof. Robert McGaff
Univ. of Wisconsin-La Crosse

As a class of compounds, the metallophthalocyanines exhibit a wide array of physical and chemical properties that can be profoundly affected by subtle changes in their structures. Shown here is methanol(h4-phthalocyaninato) magnesium(II), a recent addition to the list of compounds that fit this classification. This compound adopts a crystal structure that results from two different types of interactions between molecules. These are known as p-p dimerization and hydrogen bonding. One interesting subtlety in the structure of the molecule shown can be described as a "hat visor" shape, a description put forth for the first time in a very recent paper describing this structure. This molecule is only one of several related compounds under investigation through a collaboration involving Dr. Ilia Guzei, Director of the Molecular Structure Laboratory at the University of Wisconsin-Madison and Robert McGaff, an Associate Professor of Chemistry at the University of Wisconsin-La Crosse.

Welcome to Reciprocal Net

The Reciprocal Net is a distributed database used by research crystallographers to store information about molecular structures; much of the data is available to the general public. The Reciprocal Net project is still under development. Currently, we have 18 participating crystallography laboratories online. The project is funded by the National Science Foundation (NSF) and part of the National Science Digital Library. More about Reciprocal Net.

Partners

Indiana University
Consortium for Advanced Radiation Sources
Los Alamos National Lab
Massachusetts Institute of Technology
McMaster University
Northwestern University
Ohio State University
Oklahoma University
Princeton University
Purdue University
University of California, San Diego
University of Cincinnati
University of Iowa
University of Kansas
University of Minnesota
University of Southampton
University of Sydney
University of Wisconsin
Wake Forest University
Youngstown State University

News

The Crystal-Grid Collaboratory
held its second workshop in Bloomington, Indiana, USA, April 26-28, 2007.

Events

Annual meeting of the American Crystallographic Association,
SNS, Knoxville, 31 May - 5 June 2008

XXI Congress of the International Union of Crystallography
Osaka, Japan, August 2008

ECM-25: Istanbul, Turkey,
9-14 August 2009

Hot Topics in Chemistry

The Nobel Prize in Chemistry 2007 was awarded to Gerhard Ertl for his studies of chemical processes on solid surfaces.

The Future of Energy Supply: Challenges and Opportunities are discussed by Nicola Armaroli and Vincenzo Balzani.

Rapid and reversible shape changes of molecular crystals on photoirradiation. (Seiya Kobatake, Shizuka Takami, Hiroaki Muto, Tomoyuki Ishikawa and Masahiro Irie: Nature 446, 778-781, 2007) Seiya Kobatake and co-workers discuss photo reponses of molecular crystals that are based on diarylethene chromophores, which exhibit rapid and reversible macroscopic changes in shape and size induced by ultraviolet and visible light.