molecular cluster
11Molecular orbital theory — In chemistry, molecular orbital (MO) theory is a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms, but are treated as moving under the influence of the nuclei in the whole… …
12Cluster (physics) — In physics, the term clusters denotes small, multiatom particles. As a rule of thumb, any particle of somewhere between 3 and 3x107 atoms is considered a cluster. Two atom particles are sometimes considered clusters as well[citation needed]. The… …
13Cluster expansion — In statistical mechanics, the cluster expansion (also called the high temperature expansion or hopping expansion) is a power series expansion of the partition function of a statistical field theory around a model that is a union of non… …
14Open cluster — Galactic cluster redirects here. See also galaxy groups and clusters NGC 265, an open star cluster in the Small Magellanic Cloud An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and… …
15Coupled cluster — Electronic structure methods Tight binding Nearly free electron model Hartree–Fock method Modern valence bond Generalized valence bond Møller–Plesset perturbation theory …
16Star cluster — Star clusters are groups of stars which are gravitationally bound. Two distinct types of star cluster can be distinguished: globular clusters are tight groups of hundreds of thousands of very old stars, while open clusters generally contain less… …
17Coupled Cluster — Theoretische Chemie ist die Anwendung nichtexperimenteller (üblicherweise mathematischer oder computersimulationstechnischer) Methoden zur Erklärung oder Vorhersage chemischer Phänomene. Daher beschäftigt sie sich in erster Linie mit der… …
18Software tools for molecular microscopy — There are a large number of software tools or software applications that have been specifically developed for the field sometimes referred to as molecular microscopy or cryo electron microscopy or cryoEM. Several special issues of the Journal of… …
19Hyades (star cluster) — Hyades Cluster Observation data (J2000.0 epoch) Constellation …
20Water cluster — In chemistry a water cluster is a discrete hydrogen bonded assembly or cluster of molecules of water [cite journal | title = Water: From Clusters to the Bulk | author = Ralf Ludwig | journal = Angew. Chem. Int. Ed. | year = 2001 | volume = 40 |… …
