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Development of Semi-Empirical Parameters for the Group V and Group VI Elements

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
19797
Program Year/Program:
1993 / SBIR
Agency Tracking Number:
19797
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Semichem
12715 W. 66th Terrace Shawnee, KS 66216
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1993
Title: Development of Semi-Empirical Parameters for the Group V and Group VI Elements
Agency / Branch: DOD / ARMY
Contract: N/A
Award Amount: $61,075.00
 

Abstract:

The project proposed for funding here deals with the expansion of a next generation model in semiempirical molecular orbital treatments. The new approach is called SAM1 (for Semiempirical ab initia Method Version 1). SAM1 is different from present methods in that it explicitly computes two-electron repulsion integrals via a minimum Gaussian basis set, bringing new theoretical rigor to the NDDO model on which such successful techniques as AM1 and MNDO are based. Many of the aspects that make seimempirical methods so attractive and useful to such a wide audience (i.e. speed and implicit accounting for electron correlation) are retained in SAM1. We propose here to expand and apply the SAM1 method to a variety of new elements and to test its performance on the prediction of chemical phenomena. Parameter sets for carbon (C), hydrogen (H), oxygen (O), nitrogen (N), fluorine (F), chlorine (Cl), bromine (Br), and iodine (I) have already been derived. We will expand this set of elements to sulfur (S), phosphorous (P), silicon (Si), arsenic (As), and copper (Cu), allowing SAM1 to be applied to a wide range of chemistry including the processes of life, materials science, and many reactions of industrial importance. SAM1 represents the first practical and accurate computational treatment of systems involving transition metals.

Principal Investigator:

Andrew J. Holder
8162352293

Business Contact:

Small Business Information at Submission:

Semichem
12715 W. 66th Terrace Shawnee, KS 66216

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No