NotesFAQContact Us
Collection
Advanced
Search Tips
50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

Back to results
Peer reviewed Peer reviewed
ERIC Number: EJ187401
Record Type: CIJE
Publication Date: 1978
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Enumeration of Permutational Isomers: The Porphyrins
Tapscott, R. E.; Marcovich, D.
Journal of Chemical Education, 55, 7, 446-7, Jul 78
Describes a technique based on combinatorial mathematical principles for counting porphyrin isomers. (Author/CP)
Descriptors: Chemical Bonding, Chemistry, College Science, Higher Education, Instructional Materials, Mathematics, Organic Chemistry, Science Education, Teaching Methods
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: N/A