Minimal Basis Sets
The most common minimal basis set is STO-nG, where n is an integer. This n value represents the number of Gaussian primitive functions comprising a single basis function. In these basis sets, the same number of Gaussian primitives comprise core and valence orbitals. Minimal basis sets typically give rough results that are insufficient for research-quality publication, but are much cheaper than their larger counterparts. Commonly used minimal basis sets of this type are:
- STO-3G
- STO-4G
- STO-6G
- STO-3G* - Polarized version of STO-3G
There are several other minimum basis sets that have been used such as the MidiX basis sets.
Read more about this topic: Basis Set (chemistry)
Famous quotes containing the words minimal, basis and/or sets:
“For those parents from lower-class and minority communities ... [who] have had minimal experience in negotiating dominant, external institutions or have had negative and hostile contact with social service agencies, their initial approaches to the school are often overwhelming and difficult. Not only does the school feel like an alien environment with incomprehensible norms and structures, but the families often do not feel entitled to make demands or force disagreements.”
—Sara Lawrence Lightfoot (20th century)
“The basis of political economy is non-interference. The only safe rule is found in the self-adjusting meter of demand and supply. Do not legislate. Meddle, and you snap the sinews with your sumptuary laws.”
—Ralph Waldo Emerson (1803–1882)
““Yes” shuts us in. “No” sets us free.”
—Mason Cooley (b. 1927)