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Created August 20, 2011 06:36
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Water AICCM
___ __ ______ ______ .___ ___.
/ \ | | / | / || \/ |
/ ^ \ | | | ,----'| ,----'| \ / |
/ /_\ \ | | | | | | | |\/| |
/ _____ \ | | | `----.| `----.| | | |
/__/ \__\ |__| \______| \______||__| |__|
ab initio cyclic cluster model
Developed by Michael F. Peintinger
Institute of Physical and Theoretical Chemistry
University of Bonn, Germany
With contributions from (in alphabetic order):
Thorsten Claff
Gabriele Lanaro
We gratefully acknowledge the following researchers
for allowing us to interface and adapt parts of
their codes:
S. R. Bahn and K. W. Jacobsen (ASE)
Richard P. Müller (PyQuante)
Ed Valeev (LibInt ERI package)
Version: 0.2
Current local time: Sat Aug 20 08:33:42 2011
AICCM is free software! You can redistribute and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation
either version 3 of the License or any later version.
Parallel calculation
Number of CPU cores on this machine 2
System Information:
Chemical Sum Formula: OH2
This is a Molecule.
Atomic Positions (Angstrom):
No Atom X Y Z
1 O -0.0000 -0.3880 0.0000
2 H 0.7510 0.1940 0.0000
3 H -0.7510 0.1940 0.0000
Auxiliary basis generated.
Number of electrons: 10
-> Closed shell system
------------------ Setting up restricted SCF calculation ----------------
Convergence accelerator disabled.
Eigensovler set to ST.
General eigenvalue problem will be solved by transformation to standard eigenvalue problem.
Initial guess for density matrix...
Calculating overlap matrix...
Time to calculate overlap matrix: 0.00 seconds.
Overlap Matrix
[[ 1. 0.24 0. 0. 0. 0.05 0.05]
[ 0.24 1. 0. -0. 0. 0.48 0.48]
[ 0. 0. 1. 0. 0. 0.31 -0.31]
[ 0. -0. 0. 1. 0. 0.24 0.24]
[ 0. 0. 0. 0. 1. 0. 0. ]
[ 0.05 0.48 0.31 0.24 0. 1. 0.26]
[ 0.05 0.48 -0.31 0.24 0. 0.26 1. ]]
Initial guess
[ 0.15 -0. -0.62 0. 0.76 0. -0.3 ]
[ 0.42 -0. -0.3 0. -0.3 -0. 1.2 ]
[ 0. 0.69 -0. 0. -0. 0.94 0. ]
[ 0.19 0. 0.65 0. 0.65 -0. 0.55]
[ 0. 0. 0. 1. -0. -0. 0.]
[ 0.37 0.37 0.12 0. -0.15 -0.88 -0.75]
[ 0.37 -0.37 0.12 0. -0.15 0.88 -0.75]
Time to calculate initial guess for density matrix: 0.01 seconds.
Calculating kinetic energy matrix...
Time to calculate kinetic energy matrix: 0.01 seconds.
Calculating nuclear attraction matrix...
Time to calculate nuclear attraction matrix: 0.02 seconds.
Calculating full ERIs...
Time to calculate full ERIs: 0.34 seconds.
Number of ERIs that were calculated: 2401
Calculating overlap matrix...
Time to calculate overlap matrix: 0.00 seconds.
Overlap Matrix
[[ 1. 0.24 0. 0. 0. 0.05 0.05]
[ 0.24 1. 0. -0. 0. 0.48 0.48]
[ 0. 0. 1. 0. 0. 0.31 -0.31]
[ 0. -0. 0. 1. 0. 0.24 0.24]
[ 0. 0. 0. 0. 1. 0. 0. ]
[ 0.05 0.48 0.31 0.24 0. 1. 0.26]
[ 0.05 0.48 -0.31 0.24 0. 0.26 1. ]]
Iteration Electronic Energy ΔE ΔD
1 -84.19067018 -0.60113690 +0.09601017
2 -84.22204342 -0.03137325 +0.03487364
3 -84.22499749 -0.00295406 +0.01112372
4 -84.22537960 -0.00038211 +0.00407220
5 -84.22543978 -0.00006018 +0.00158684
6 -84.22545030 -0.00001052 +0.00064840
7 -84.22545221 -0.00000191 +0.00027171
8 -84.22545256 -0.00000035 +0.00011537
9 -84.22545263 -0.00000007 +0.00004933
SCF converged after 9 iterations :-)
-------------------------- SCF Energies ----------------------------
Total Energy : -74.96178923
Nuclear Repulsion : +9.26366340
Electronic Energy : -84.22545263
One Electron Energy : -122.48977723
Electron Attraction : -98.54778305
Kinetic Energy : +74.60578888
Two Electron Energy : +38.26432460
Coulomb Energy : +47.37577846
Exchange Energy : +9.11145386
Virial Components
Potential Energy : -149.56757811
Kinetic Energy : +74.60578888
Virial Ratio : 2.00
----------------------------- Summary ------------------------------
Final electronic HF energy : -84.22545263
Final total HF energy : -74.96178923
Calculation finished after 0.61 seconds.
-74.9617892322
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