Strings and Things

2/28/01


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Table of Contents

Strings and Things

Antoine Lavoisier

Representing compounds as pictures

Representing compounds as pictures

Representing compounds as character strings

Representing compounds as character strings

Hill Order

Representing chemical structures on paper

Representing chemical structures on paper

Representing chemical structures.

Representing chemical structures.

Linking activity to structure

Representing stereochemistry

Representing molecules on paper.

Frederick Beilstein

Mechanisation of structure input

A primitive Chemical Information System

Wisswesser line notation

Wisswesser line notation.

Wisswesser line notation.

Wisswesser line notation.

Wisswesser line notation.

Line notations are part of the mainstream of chemical indexing

Line notations are part of the mainstream of chemical indexing

Machine readable structure representation.

Wisswesser Line Notation

Molecules in a computer.

CAOCI and CROSSBOW

“Line notations are dead”

Machine readable structure representation.

Machine readable structure representation.

The rebirth of line notations

Languages

SMILES

SMILES syntax

Example SMILES

Analyzing Molecules*

Derived properties

Derived properties

Beyond the structure diagram

SMARTS

Example SMARTS

Useful SMARTS

Rotatable bonds [!$(*#*)&!D1]-&!@[!$(*#*)&!D1]

Berzelius revisited

PPT Slide

Supplementary slides

Machine reading of information

Handling large amounts of data

Handling large amounts of data

Rotatable bonds [!$(*#*)&!D1]-&!@[!$(*#*)&!D1]

Counting things

Example

Estimating Measured Properties

Examples of properties to calculate

Molecular weight: a simple example

CLOGP: A more complicated example

CLOGP example

Estimating values for concepts

Example

Example

Author: research office

Email: johnb@daylight.com