I  U  P  A  C

News & Notices

Organizations & People

Standing Committees







Links of Interest

Search the Site

Home Page


 Inorganic Chemistry (II)

Commission on Nomenclature of
Inorganic Chemistry (II.2)

> Back to Commission page

Annual meeting 2000, brief summary

The Commission met in Dublin, Ireland, on August 19-21, 2000. As a first order of business the minutes of the 1999 meeting in Berlin were approved.

Copies of two recent publications were distributed: Nomenclature of Organometallic Compounds of the Transition Elements, A. Salzer, Pure Appl. Chem. 71 (1999) 1557-1585. Names for Inorganic Radicals, W. H. Koppenol, Pure Appl. Chem. 72 # 3 (2000) 437-446. Two documents by Prof. Koppenol, Names for Muonium Ions and Radicals and The Naming of New Elements, were discussed. The muonium document had been sent to IDCNS and IUPAP and will be submitted to Commission V.7 for comments. The document dealing with the naming of elements will be sent to the Division of Inorganic Chemistry for consultation including external reviews.

A contract for publication of Red Book II has been signed with the RSC. Page proofs are expected in November, 2000. Publication is now targeted for 2001.

The principal business of this meeting was to set a firm timetable for Red Book I revision with Prof. N. Connelly as editor. Specific assignments were allocated to Commission members with a deadline set to reply to the editor by January 1, 2001. A number of decisions were made regarding rules to be stated in the revised Red Book I. These decisions will be apparent in the full minutes from the Dublin meeting. Prof. Connelly is expecting to have a draft document for the next meeting in Brisbane, June 30-July 3, 2001.

The Commission heard a report from Prof. A. Dress on the activities of a group addressing the encoding of molecular structures and the prospects for a unique chemical identifier (IUChI). This identifier will most likely be a string of symbols generated by the computer from a connection table. A project entitled Computer-Aided Nomenclature for Clusters and Polyhedra was formulated by Prof. Dress during the meeting. This comes under the IUPAC strategic thrust for development of effective channels of computer-aided communication in the international chemical community. Initially the project will aim at using descriptors for clusters and polyhedra in the form of alphanumeric strings. It is the intention that these methods eventually merge with Heller's approach. If funded, this project will commence January 1, 2001 and continue for three years.

The Commission also heard proposals for two other projects: Organometallics and Preferred Names (P-Names). The ongoing work in organometallic chemistry will continue with the emphasis on metallacycles. The metallacycle working document will be further revised and disseminated to the working party. A new titular member of the Commission, Dr. Alan Hutton, has agreed to assume leadership of a project to produce a separate book on organometallic nomenclature.

A new thrust to devise a list of preferred names for inorganic compounds was initiated. The feasibility of establishing these P-Names will be explored initially in the list of the names of ions and groups that is contained in the 25-page Table VIII in Red Book I. CNIC is ready to work with CNOC and any other commissions in the area of overlapping entries. In cases where no common agreement can be reached, we plan mutual cross-references.

The Commission heard a presentation from Dr. J. Wisniewski, Senior Developer at MDL and member of CNOC. Dr. Wisniewski demonstrated the operation of Autonom by drawing a structure of an organic compound and displaying its computer-generated name. At present the program is based on the 1979 IUPAC rules for naming organic compounds. The demonstration was impressive, but serious limitations were apparent in the version demonstrated. Multiplicative names cannot be generated, symmetrical compounds also fail and the program is limited to 125 atoms. Dr. Wisniewski also reported that MDL recently acquired a license to use the Gmelin Database of Inorganic Compounds.

The Commission was informed that the IUPAC/IUPAP Joint Working Party on Claims to the Discovery of Elements 110, 111 and 112 was able to attribute the discovery of element 110 to the GSI at Darmstadt. The chair of CNIC will accordingly invite the Laboratory at Darmstadt to provide suggested names. Conclusive discovery of elements 111 and 112 had not yet been established by the IUPAC/IUPAP Joint Working Party.

The future of nomenclature activities in inorganic chemistry was discussed. In order to provide continuity of such efforts under the IUPAC reorganization, the Commission members present unanimously supported the idea to keep the Commission together as a group. There was strong sentiment to remain under its former title or receive some equivalent affiliation with the Division of Inorganic Chemistry.

The members were thanked for their efforts and the meeting was adjourned. The next meeting will be held in Brisbane, Australia, June 30-July 3, 2001.

James B. Casey (CNIC member, IDCNS representative)
Ture Damhus (CNIC secretary)
Ultimo October 2000

> Download full text of the minutes of the meeting (pdf file - 51kb)

> Summary published in Chem. Int. 23(2), 2001

Page last modified 23 February 2001.
Copyright ©1997-2001 International Union of Pure and Applied Chemistry.
Questions or comments about IUPAC, please contact, the Secretariat.
Questions regarding the website, please contact web manager.