- 関
- highest occupied molecular orbital
WordNet
- any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage (同)man, human_being, human
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2012/09/27 12:12:03」(JST)
[Wiki ja表示]
HOMO(ホモ、英: Highest Occupied Molecular Orbital)または最高被占軌道は電子に占有されている最もエネルギーの高い分子軌道で、LUMO(ルモ、英: Lowest Unoccupied Molecular Orbital)または最低空軌道は電子に占有されていない最もエネルギーの低い分子軌道である。合わせてフロンティア軌道と呼ばれることもある[1]。HOMO と LUMO の間のエネルギー差は HOMO-LUMO エネルギーギャップと呼ばれる。
基本的に有機半導体においては、HOMO準位と真空準位のエネルギー差がイオン化エネルギー、LUMO準位と真空準位のエネルギー差が電子親和力となる。
有機半導体における「HOMOレベル」の対応関係は、無機半導体または量子ドットにおける「価電子バンド」の関係と同じである。伝導体と LUMO レベルとの間にも似た関係がある。
SOMO
SOMO(ソモ、英: Singly Occupied Molecular Orbital)または半占軌道はラジカル中の電子に半分占有されている分子軌道である[2]。
出典
- ^ GA Tech Chemistry p. 2-67 Frontier Orbitals
- ^ IUPAC Gold Book http://www.iupac.org/goldbook/S05765.pdf
関連項目
- フロンティア軌道理論
- 配位子場理論
- ディールス・アルダー反応
- 電子配置
- クープマンズの定理
- 有機半導体
[Wiki en表示]
HOMO and LUMO are acronyms for highest occupied molecular orbital and lowest unoccupied molecular orbital, respectively. The energy difference between the HOMO and LUMO is termed the HOMO-LUMO gap. HOMO and LUMO are sometimes referred to as frontier orbitals.[1]
Roughly, the HOMO level is to organic semiconductors what the valence band maximum is to inorganic semiconductors and quantum dots. The same analogy exists between the LUMO level and the conduction band minimum.[citation needed]
In organometallic chemistry the size of the LUMO lobe can help predict where addition to pi ligands will occur.
SOMO
A SOMO is a singly occupied molecular orbital such as half-filled HOMO of a radical.[2]
See also
- Frontier molecular orbital theory
- Diels–Alder reaction
- Electron configuration
- Koopmans' theorem
- Ligand
- Organic semiconductor
References
- ^ GA Tech Chemistry p. 2-67 Frontier Orbitals
- ^ IUPAC Gold Book http://www.iupac.org/goldbook/S05765.pdf
UpToDate Contents
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English Journal
- Tailoring and histochemical application of fluorescent homo-dimeric styryl dyes using frozen sections: From peroxidase substrates to new cytochemical probes for mast cells, keratin, cartilage and nucleic acids.
- Krieg R, Eitner A, Halbhuber KJ.SourceInstitute of Anatomy/Anatomy II, Friedrich-Schiller-University Jena, Teichgraben 7, D-07743 Jena, Germany.
- Acta histochemica.Acta Histochem.2011 Nov;113(7):682-702. Epub 2011 Apr 8.
- Homo-dimers of styryl dyes were chemically tailored in order to become specific cytochemical probes for use in the life sciences. Histochemical applications using fixed cryotome sections are discussed. It is concluded, that homo-dimerization of specific styryl substrates of peroxidase (PO) by way of
- PMID 21477847
- Dependence on different Rab GTPases for the trafficking of CXCR4 and CCR5 homo or heterodimers between the endoplasmic reticulum and plasma membrane in Jurkat cells.
- Charette N, Holland P, Frazer J, Allen H, Dupre DJ.AbstractMuch is known about G protein coupled receptor trafficking and internalization following agonist stimulation. However, much less is known about outward trafficking of receptors from synthesis in the endoplasmic reticulum to the plasma membrane, or the role that trafficking might play in the assembly of receptor signaling complexes, important for targeting, specificity, and rapidity of subsequent signaling events. Up to now, very little is understood about receptor hetero-oligomers other than the fact that their assembly is done rapidly after biosynthesis. In our study we use bimolecular fluorescence complementation to selectively follow receptor dimers when expressed in Jurkat cells in order to clarify the trafficking itinerary those receptors follow to reach the plasma membrane and the resulting effect on signal transduction. CXCR4 and CCR5, previously shown to form both homo and hetero-oligomers, were used as our model to understand the specificities of trafficking along the anterograde pathway. The CXCR4 homodimer relies on Rabs2, 6 and 8 for anterograde transport regardless of the presence of endogenous CD4. The CCR5 homodimer relies on Rabs1 and 11 when CD4 is absent, but Rabs1 and 8 when CD4 was present. Interestingly, similar to the CCR5 homodimer, the CXCR4-CCR5 heterodimer relied on Rabs1 and 11 but also required Rab2 when CD4 was absent, and only Rab 1 when CD4 was present. Our results demonstrate that, although the receptors composing the heterodimeric complex are the same as in the homodimeric ones, the heterodimer traffics and signals differently than each homodimer. Our study demonstrates the importance of considering the receptor heterodimers as distinct signaling entities that should be carefully and individually characterized.
- Cellular signalling.Cell Signal.2011 Nov;23(11):1738-49. Epub 2011 Jun 24.
- Much is known about G protein coupled receptor trafficking and internalization following agonist stimulation. However, much less is known about outward trafficking of receptors from synthesis in the endoplasmic reticulum to the plasma membrane, or the role that trafficking might play in the assembly
- PMID 21723943
Japanese Journal
- Power Efficiency Improvement of White Phosphorescent Organic Light-Emitting Diode with Thin Double-Emitting Layers and Hole-Trapping Mechanism
- Juang Fuh-Shyang,Hong Lin-Ann,Wang Shun-Hsi [他],Tsai Yu-Sheng,Gao Ming-Hong,Chi Yun,Shieh Han-Ping,Hsu Jen-Sung
- Jpn J Appl Phys 50(4), 04DK04-04DK04-4, 2011-04-25
- … An Os complex with a high-lying highest occupied molecular orbital (HOMO) energy level (trapping holes) is codoped at the interface between emitting layers and an exciton-formation zone is expanded to obtain a white PHOLED with high efficiency. …
- NAID 150000055637
- Flexible Command : A Solution to the Symmetry Problem of Adjunction, Scrambling, and Dislocation
- Arikawa Koji
- 桃山学院大学人間科学 (40), 65-200, 2011-03-30
- … Human language (CHL) has evolved from the mutated brain of Homo Habilis about two million years ago, and what the system does is aimlessly multiply a binary-branching structure (two-membered-set building). … Human language has not evolved for the purpose of communication as demonstrated by the fact that Homo Sapiens (us) as a species have disclosed the worst quality of communicative competence: the key words for understanding our species are lie (fraud) and war (murder). …
- NAID 110008425529
Related Links
- 結合性軌道と反結合性軌道、HOMOとLUMO. 結合性軌道と反結合性軌道水素原子は原子単一 としては存在せず、実際にはより安定なH2分子として存在する。このとき、水素原子は 互いに1s軌道同士を重ねることで結合を形成している。 ...
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★リンクテーブル★
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- 英
- highest occupied molecular orbital、HOMO
- 関
- 最高被占分子軌道
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- 関
- HOMO
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- 関
- ape、hominid、Hominidae、Homo sapiens、homogeneous、homogeneously、human、man、Pongidae、uniform、uniformly