geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Are there pi* shape resonances in electron scattering from phosphate groups?


, : Are there pi* shape resonances in electron scattering from phosphate groups?. Journal of Physical Chemistry. A 112(17): 4106-4113

The temporary anion states of trimethyl phosphate and several compounds bearing the P=O group were explored using electron transmission spectroscopy and ab initio calculations to determine if these states have the characteristics of the pi* resonances usually associated with multiple bonds. No evidence was found for this in (CH3O)3PO and, by extension, we do not expect them to appear in the phosphate group of DNA. Cl3PO, however, does display such characteristics to some extent, and we show that they arise from the spatial properties of the sigma* (P-Cl) orbitals rather than from multiple PO bonding. A novel computational means to explore effects due to the relative size of a molecular orbital and that of the angular momentum barrier responsible for confining the additional electron is presented.

US$19.90

PMID: 18366196

DOI: 10.1021/jp7109143


Other references

O.B.ien P.E.; Korsch R.J.; Wells A.T.; Sexton Michael J.; Wake Dyster K.D., 1990: Mesozoic basins at the eastern end of the Eromanga-Brisbane geoscience transect; strike-slip faulting and basin development. Bulletin - Australia, Bureau of Mineral Resources, Geology and Geophysics 232: 117-132

Anderson, W.H.; Archuleta, M.M., 1984: The capillary gas chromatographic determination of trazodone in biological specimens. A simple and specific method is presented for the capillary gas chromatographic determination of trazodone in postmortem blood and tissues. The drug and trimethobenzamide, which was used as an internal standard, were extracted with 1% isopropanol...

Baruffi I.; Philbert P.M.D.; Freitas M.M.S.D., 1982: Principles of oncologic surgery. The use of surgery for diagnosis (biopsy), clinical staging (exploratory surgery), and treatment (curative, palliative or endocrine surgery) [in humans] is discussed. Palliation of pain and the recovery of the aesthetic and functional capacity (re...

Anonymous, 2012: Modificacion de la prescripcion procedente del segundo nivel de asistencia por parte del medico de Atencion Primaria. Determinar el porcentaje de nuevas prescripciones procedentes de Atenci n Especializada recibidas y modificadas por los m dicos de Atenci n Primaria. <section-title>Dise o</section-title> Estudio descriptivo, transversal y multic ntric...

Bailey, Ja, 1987: Phytoalexins: a genetic view of their significance. Genetics and plant pathogenesis edited for the British Society for Plant Pathology by PR Day and GJ Jellis: 244

Nagatomo, I.; Akasaki, Y.; Tominaga, M.; Hashiguchi, W.; Uchida, M.; Takigawa, M., 2004: Abnormal behavior of residents in a long-term care facility and the associated stress of care staff members. To survey the factors associated with abnormal behavior in 99 elderly residing in a special nursing home, we investigated the relationships between abnormal behavior and depression as well as impairments in cognition and activities of daily living...

Joris, E., 1953: Two years of biliary manometry and radiography; review of 130 cases. Acta Chirurgica Belgica 52(2): 130-168

Motlík, K., 1966: An estrogen-producing "yellow tumour" of the ovary associated with arterial hypertension. (A case report contributing to the problem of classification of functioning ovarian neoplasms). Endokrynologia Polska 17(5): 525-539

Webb, Neil Broyles, 1960: The tenderness of beef as related to tissue components, age, stress and post-mortem biochemical changes. Dissertation Absts 20(9): 3458

Kasamatsu, A.; Iyoda, M.; Usukura, K.; Sakamoto, Y.; Ogawara, K.; Shiiba, M.; Tanzawa, H.; Uzawa, K., 2012: Gibberellic acid induces α-amylase expression in adipose-derived stem cells. Salivary α-amylase is the most important enzyme for oral digestion of dietary starch. Therefore, regeneration of the salivary glands via a tissue engineering approach is clearly required for patients with salivary gland dysfunction. Early during...