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U.S. National Committee for Crystallography

The U.S. National Committee for Crystallography (USNC/Cr) represents U.S. crystallographers in the International Union of Crystallography (IUCr) through The National Academy of Sciences. The IUCr strives to promote international cooperation and publication in crystallography; to facilitate standardization of methods, units, nomenclatures and symbols; and to form a focus for the relations of crystallography to other sciences. 


USNC Cr Committee Photo Toronto 2018
The USNC/Cr gathers at the 2018 ACA Meeting in Toronto, Canada.

In Memoriam: Judith Flippen-Anderson

BISO was sadden to learn of the passing of Judith Flippen-Anderson, a longtime member and volunteer for the U.S. National Committee for Crystallography. Dr. Flippen-Anderson served on the USNC/Cr in the 1980s and 1990s before becoming Vice Chair in 1993 and Chair in 1997. Additionally, she served on six delegations to various IUCR Congresses and General Assemblies.

To read Dr. Flippen-Anderson's complete interview, visit

Quality of IUCr Journals Greatly Improved Under Past President Marvin Hackert
Marvin Hackert, past-president of the IUCr and a current BISO Board member, has worked very hard to improve the quality of the IUCr journals. All journals, according to the 2017 impact factors released by Clarivate Analytics, have increased. They now occupy the top four positions in the Crystallography category:
Other journals that saw an increase in impact factors were: Acta Crystallographica Section D: Structural Biology, Acta Crystallographica Section F: Structural Biology Communications, Journal of Applied Cyrstallography, and Journal of Synchrotron Radiation.

Become an IUCr Associate
The IUCr Associates Programme provides a home for crystallographers by offering a series of benefits for your professional development; it also enables the IUCr to continue its outreach efforts to bring crystallography and crystallographic training to all parts of the world.

Join now to take advantage of the wide range of benefits and resources available, and make the most of being an IUCr Associate. For more details about the programme, please click here. Joining is easy; simply follow the steps given below.

Step 1
Go to where you will be guided through the process of creating an IUCr account (or logging in if you already have an IUCr account). Select the appropriate fee (this is for a 3-year period), either full (USD 200), student (USD 60), or retired (USD 60). Click 'continue.'

Step 2
The next set of pages will take you through the payment process. Once you have completed your payment successfully you can gain access to your Associate benefits by logging in here:

Please contact if you have any questions.

2019 ACA Summer School
The 2019 ACA Summer School for Chemical Crystallography was held at Northwestern University from June 23--30. Thirty-one participants attended from 5 countries (US, Venezuela, Brazil, Uruguay, New Zealand). Of the attendees, three were faculty members, five were from industry and the rest were graduate or undergraduate students. The attendees brought about 50 samples – both single crystal and powder – for data collection during the course. Samples were analyzed on three single-crystal instruments (Bruker and Rigaku) and one powder instrument (Stoe).

This is the last year of the agreement between the ACA and Northwestern/Notre Dame to run the school. Starting next year, the course will alternate between Purdue University (even years) and Northwestern (odd years). Matthais Zeller will run the school at Purdue, and Charlotte Stern and Christos Malliakas will continue on at Northwestern. Most faculty instructors have agreed to continue participating in the school under this new regime. Along with this transition, the ACA Summer School website ( will be decommissioned and the site will be hosted under the ACA main website. The ACA will also handle attendee registrations for the course organizers.

2017 IUCr Congress & General Assembly: August 21-28 in Hyderabad, India
India hosted the XXIV Congress and General Assembly of the International Union of Crystallography from August 21-28, 2017, where the IUCr Executive Committee and IUCr Finance Committee also met. Here are some highlights from the week in Hyderabad:
  • Over 1700 participants from 73 countries attended the Congress and General Assembly. There were over 600 speakers and 700 poster sessions in total.
  • Richard Henderson and Joachim Frank, who would later share the 2017 Nobel Prize in Chemistry with Jacques Dubochet, were among the presenters.
  • Though the United States presented a strong bid to host the IUCr XXVI in San Diego, Melbourne, Australia was chosen as the location of the 2023 Congress and General Assembly.
  • The representation of women as members of IUCr commissions rose from 17% to 26% in Hyderabad. After the election of new officers, the number of women on the IUCr executive committee rose from one to three members. Relatedly, the IUCr recommended a Statement on Gender Balance that was endorsed at the General Assembly.
  • The IUCr Associates Program was launched in Hyderabad. Students, retired scientists, and crystallographers from developing countries can apply to receive a 20% discount on their three-year membership fee. To learn more about this program, visit

IUPAP and IUCr Receive €300k Grant from ICSU
The International Council for Science (ICSU) awarded one of its three €300k grants to IUPAP and IUCr, in order for the two unions to work on a three-year advanced light source project. Utilisation of Light Source and Crystallographic Sciences to Facilitate the Enhancement of Knowledge and Improve the Economic and Social Conditions in Targeted Regions of the World will focus on lightsources for Africa, Mexico, the Caribbean, and the Middle East. The three-year project's aims include the creation of print materials to better explain light sources and the field of crystallography, the launching of five more crystallography laboratories in various parts of the world, and the international exchange of students and researchers.

The project is led by Sekazi K. Mtingwa and Sandro Scandolo of the IUPAP C13 Commission, and Michele Zema of the IUCr. The partnering organizations include ICSU Regional Offices, the International Union of Materials Research Societies, the International Centre for Theoretical Physics, and UNESCO, among others.

IUCr Releases "A Little Dictionary of Crystallography" (2017)
The IUCr Commission on Crystallographic Nomenclature has released the second edition of its "Little Dictionary of Crystallography." This book is meant to be a physical companion to the IUCr's Online Dictionary of Crystallography, and is available for purchase on

IUCr Launches New Webpage: "Crystallography Around the World"
As of March 15, 2016, the IUCr website features a new "Crystallography Around the World" page, which serves as a repository to centralize union activities and practitioners. Users can select their country of interest, then browse associations, past and future events, membership lists, and photo galleries. Click here to view the U.S. subpage.



Past Activities and Events

USNC/Cr Funding Support Application

USNC/Cr Letter of Endorsement Application
Resource Links
IUCr Webpage
Contact the USNC/Cr

Ana Ferreras, Senior Program Officer
Pam Gamble, Administrative Associate

More resources on the USNC/Cr

The 2014 USNC/Cr brochure is now available online as a PDF for download.

This material is based upon work supported by the National Science Foundation under Grant Number PHY-1441995. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

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