MULTILEVEL contains the IMOHC, LC, SAC, MCCM, and MC-QCISD methods.
MC3BB and MC3MPW are described in:
"Doubly Hybrid Meta DFT: New Multi-Coefficient Correlation and Density Functional Methods for Thermochemistry and Thermochemical Kinetics," Y. Zhao, B. J. Lynch, and D. G. Truhlar, J. Phys. Chem. 108 (2004) 4786.
For MC-QCISD, it contains the latest set of coefficients (which are
the only set of coefficients for this method) as described in:
"MC-QCISD: Multi-Coefficient Correlation Method Based on Quadratic
Configuration Interaction with Single and Double Excitations," P. L. Fast
and D. G. Truhlar, Journal of Physical Chemistry A 104, 6111-6116 (2000)
SAC and other MCCM methods are described in:
"Optimized Parameters for Scaling Correlation Energy," P. L. Fast,
J. Corchado, M. L. Sanchez, and D. G. Truhlar, Journal of
Physical Chemistry A 103, 3139-3143 (1999).
"Multi-Coefficient Correlation Method for Quantum Chemistry," P. L.
Fast, J. C. Corchado, M. L. Sánchez, and D. G. Truhlar, Journal
of Physical Chemistry A 103, 5129-5136 (1999); erratum: to be published.
"The Gaussian-2 Method with Proper Dissociation, Improved Accuracy,
and Less Cost," P. L. Fast, M. L. Sánchez, J. C. Corchado, and D.
G. Truhlar, Journal of Chemical Physics 110, 11679-11681 (1999).
'Multi-Coefficient Gaussian-3 Method for Calculating Potential
Energy Surfaces," P. L. Fast, M. L. Sánchez, and D. G. Truhlar,
Chemical Physics Letters 306, 407-410 (1999).
MULTILEVEL allows the use of version 2 coefficients for these
MCCM methods by use of the VER keyword. The version 2 coeffiocients
are presented in:
"Improved Coefficients for the Scaling All Correlation and Multi-Coefficient
Correlation Methods," C. M.Tratz, P. L. Fast, and D. G. Truhlar, PhysChemComm
1999, Volume 2, Article 14 (unpaginated). (10 pp.)
The LC method is described in:
"Direct Dynamics for Free Radical Kinetics in Solution: Solvent
Effect on the Rate Constant for the Reaction of Methanol with
Atomic Hydrogen," Y.-Y. Chuang, M. L. Radhakrishnan, P. L. Fast, C.
J. Cramer, and D. G. Truhlar, Journal of Physical Chemistry
A 103, 4893-4909 (1999).
IMOHC is described in:
"Integrated Molecular Orbital Method with Harmonic Cap for Molecular
Forces and its Application to Geometry Optimization and
the Calculation of Vibrational Frequencies," J. C. Corchado and D.
G. Truhlar, Journal of Physical Chemistry A 102, 1895-1898
(1998).