Accession Number:

ADA172361

Title:

MOPAC Manual (Version 3.10) a General Molecular Orbital Package -- IBM-PC Version.

Descriptive Note:

1ST EDITION FOR PERIOD ENDING Jun 86,

Corporate Author:

FRANK J SEILER RESEARCH LAB UNITED STATES AIR FORCE ACADEMY CO

Personal Author(s):

• Heimer,Norman E.
• Swanson,Jon T.
• Stewart,James J.

Report Date:

1986-08-20

Pagination or Media Count:

129.0

Abstract:

MOPAC is a general-purpose, semi-empirical molecular orbital program for the study of chemical reactions involving molecules, ions, and linear polymers. It implements the semi-empirical Hamiltonians MNDO, AMI and MINDO3 and combines the calculations of vibrational spectra, thermodynamic quantities, isotopic substitution effects, and force constants in a fully integrated program. Elements parametrized at the MNDO level include H, Li, Be, B, C, N, O, F, Al, Si, P, S, Cl, Cr, Ge, Br, Sn, Hg, Pb, and I. Within the electronic part of the calculation, molecular and localized orbitals excited states up to sextets, chemical bond indices, charges, etc. are computed. Both intrinsic and dynamic reaction coordinates can be calculated. A transition-state location routine and two transition-state optimizing routines are available for studying chemical reactions.

Descriptors:

• *COMPUTER PROGRAMS
• *CHEMICAL REACTIONS
• *MOLECULAR ORBITALS
• LINEAR SYSTEMS
• IONS
• INTEGRATED SYSTEMS
• COMPUTATIONS
• MOLECULAR STATES
• DYNAMICS
• MOLECULES
• POLYMERS
• EXCITATION
• CHEMICAL BONDS
• RESPONSE
• CONSTANTS
• COORDINATES
• ISOTOPES
• TRANSITIONS
• SUBSTITUTES
• THERMODYNAMIC PROPERTIES
• FORCE(MECHANICS)
• HAMILTONIAN FUNCTIONS
• VIBRATIONAL SPECTRA
• MINDO MOLECULAR ORBITALS

Subject Categories:

• Computer Programming and Software
• Atomic and Molecular Physics and Spectroscopy
• Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE