Análise de nomes da química Orgânica à luz da teoria do Léxico Gerativo - da análise sintático-semântica à geração das estruturas químicas através dos combinadores de Parser

Abstract

This work proposes an automatic system of analysis for Organic Chemistry compound names aiming to generate pictures of chemical structures. In order to accomplish this, the system receives an organic compound name, analyzes it syntactically and semantically and, if it represents a correct chemical compound, generates a visual output for the corresponding structure. An advance that the system shows in relation to other systems which deal with the same problem consists on being able to analyse both compound names that satisfy the current o±cial nomenclature constraints and those that, despite of do not respect them, represent correct organic compounds (in this case, the system will have solved a nomenclature ambiguity problem). The semantic and syntactic analysis are guided by the name component types of the chemical compounds, which motivated an implementation that fits into the Generative Lexicon Theory (GLT) formalism. Furthermore, the analysis guided by types justified the decision of implementing the system by using the parser combinators and the Clean Funcional Language as very adequate and eficient tools. The implemented system represents a significative utilitarian as an automatic Organic Chemistry instructor.