Polymorphism in CrystalsA Special Issue of Crystal Growth & Design

Polymorphism in CrystalsA Special Issue of Crystal Growth & Design...

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Editorial Polymorphism in CrystalssA Special Issue of Crystal Growth & Design Welcome to our second special issue of Crystal Growth & Design related to the subject of polymorphism. We received a tremendous response from both authors and readers to the first special issue on this topic (CGD 2003, Issue 6), and there has continued to be an explosion of scientific interest in the field. The latter is evidenced by the increasing numbers of papers, specialty meetings, patents, and, yes, litigation related to polymorphism. The explosion of interest is also reflected in the large number of contributions to this special issue. There are 47 total papers consisting of two perspectives, two reviews, five communications, and 38 articles, all totaling over 300 pages. Polymorphism is truly international as well, with contributions to this issue from authors in 17 different countries. Last year at this time, I pointed out the need for consistency in nomenclature. In this issue, we return to this theme in two related perspectives by Ken Seddon and Gautam Desiraju. There has been some confusing terminology, chosen on one hand by those who use it and must teach noncrystallographers, and on the other hand by those who use it and must teach other scientists. The two perspectives continue to highlight the need for consistency and scientific rigor. As you read through the following pages of CGD you will sense (if you have not already) the wide breadth and interdisciplinarity of the field. Polymorph identification is only one aspect of this growing field of research. Increasingly, many industries need to understand polymorphism so that it can be modeled, predicted, monitored, and, very importantly, controlled. The papers within these pages provide a snapshot of the state-of-the-art in these and other exciting areas of polymorphism in crystals. More than that, they often offer insight into the future of the field and identify those problems that need to be overcome to truly understand and control polymorphism. In addition to the exciting results presented in this issue, I want to bring to your attention to some exciting news for CGD! Crystal Growth & Design’s 2003 ISI impact factor rose 20% to 2.742, making it the highest ranking journal in the category of crystallography! This occurred when the number of journal pages rose 40%! We are very excited as we begin our fifth volume in January 2005, and I will have more to say about this in my first 2005 editorial. Please enjoy this special issue of Crystal Growth & Design. As always, continue to send your comments and suggestions to me at [email protected]. R. D. Rogers Editor CG049667D

10.1021/cg049667d CCC: $27.50 © 2004 American Chemical Society Published on Web 11/03/2004