Elemental and Molecular Clusters

1988 ◽  
Keyword(s):  
Molecular Clusters

The Interaction of Light Atoms with Small Molecular Clusters

2000 ◽  
Author(s):  
Paul J. Dagdigian ◽  
Millard H. Alexander
Keyword(s):  
Molecular Clusters ◽  
Light Atoms

Exciton absorption and intramolecular Penning ionisation in small molecular clusters I: (N2O)n and C6H5CN�(N2O)n

1988 ◽  
Vol 11 (2) ◽  
pp. 153-162 ◽  
Author(s):  
B. Kamke ◽  
W. Kamke ◽  
R. Herrmann ◽  
I. V. Hertel
Keyword(s):  
Molecular Clusters ◽  
Exciton Absorption

Bonding in molecular clusters and their relationship to bulk metals

1986 ◽  
Vol 15 (1) ◽  
pp. 31 ◽  
Author(s):  
D. Michael P. Mingos
Keyword(s):  
Molecular Clusters

Tests of the deformation-dipole model for metal–halide molecular clusters

2006 ◽  
Vol 44 (4) ◽  
pp. 353-359 ◽  
Author(s):  
A. Karaman ◽  
Z. Akdeniz ◽  
M. P. Tosi
Keyword(s):  
Molecular Clusters ◽  
Metal Halide ◽  
Dipole Model

Growth of aligned SWNT arrays from water-soluble molecular clusters for nanotube device fabrication

2004 ◽  
Vol 6 (6) ◽  
pp. 1077 ◽  
Author(s):  
Shaoming Huang ◽  
Qiang Fu ◽  
Lei An ◽  
Jie Liu
Keyword(s):  
Molecular Clusters ◽  
Device Fabrication ◽  
Water Soluble

scholarly journals Dirty H2 Molecular Clusters as the DIB Sources: Spectroscopic and Physical Properties

2013 ◽  
Vol 9 (S297) ◽  
pp. 378-380
Author(s):  
L. S. Bernstein ◽  
F. O. Clark ◽  
D. K. Lynch
Keyword(s):  
Single Molecule ◽  
Molecular Clouds ◽  
Rotational Temperature ◽  
Single Layer ◽  
Molecular Clusters ◽  
Microwave Emission ◽  
Giant Molecular Clouds ◽  
Induced Dipole ◽  
Spectral Profiles ◽  
Uv Photons

AbstractWe propose that the diffuse interstellar bands (DIBs) arise from absorption lines of electronic transitions in molecular clusters primarily composed of a single molecule, atom, or ion (“seed”), embedded in a single-layer shell of H2 molecules (Bernstein et al. 2013). Less abundant variants of the cluster, including two seed molecules and/or a two-layer shell of H2 molecules may also occur. The lines are broadened, blended, and wavelength-shifted by interactions between the seed and surrounding H2 shell. We refer to these clusters as CHCs (Contaminated H2 Clusters). CHC spectroscopy matches the diversity of observed DIB spectral profiles, and provides good fits to several DIB profiles based on a rotational temperature of 10 K. CHCs arise from ~cm-sized, dirty H2 ice balls, called CHIMPs (Contaminated H2 Ice Macro-Particles), formed in cold, dense, Giant Molecular Clouds (GMCs), and later released into the interstellar medium (ISM) upon GMC disruption. Attractive interactions, arising from Van der Waals and ion-induced dipole potentials, between the seeds and H2 molecules enable CHIMPs to attain cm-sized dimensions. When an ultraviolet (UV) photon is absorbed in the outer layer of a CHIMP, it heats the icy matrix and expels CHCs into the ISM. While CHCs are quickly destroyed by absorbing UV photons, they are replenished by the slowly eroding CHIMPs. Since CHCs require UV photons for their release, they are most abundant at, but not limited to, the edges of UV-opaque molecular clouds, consistent with the observed, preferred location of DIBs. An inherent property of CHCs, which can be characterized as nanometer size, spinning, dipolar dust grains, is that they emit in the radio-frequency region. Thus, CHCs offer a natural explanation to the anomalous microwave emission (AME) feature in the ~10-100 GHz spectral region.

Molecular Clusters as Heterogeneous Condensation Nuclei

1985 ◽  
pp. 1121-1127
Author(s):  
V. A. Zagaynov ◽  
A. G. Sutugin ◽  
A. A. Lushnikov
Keyword(s):  
Molecular Clusters ◽  
Condensation Nuclei ◽  
Heterogeneous Condensation
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