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Namrata Ashutosh Bhardwaj Kirti Ranjan Sudeep Chatterji Ajay K. Srivastava V.K. Verma R.K. Shivpuri 《The European Physical Journal A - Hadrons and Nuclei》2002,13(4):405-410
Multiplicity distributions of charged particles produced in interactions of 800 GeV protons with emulsion nuclei in various
rapidity windows are presented. The data is also analyzed separately for the forward and the backward hemispheres, for rapidity
windows of different widths. It is found that the Negative Binomial Distribution (NBD) describes well the multiplicity distribution
of secondary particles in various rapidity windows and also in both the hemispheres. We have compared the NBD parameters,
in both the hemispheres, at 200 GeV and 360 GeV, with those at 800 GeV. The behaviour of NBD parameters in rapidity windows
of different widths and for different targets has also been studied.
Received: 30 August 2001 / Accepted: 28 January 2002 相似文献
53.
Ramaswamy Murugavel Ramasamy Pothiraja Namrata Singh 《Journal of organometallic chemistry》2007,692(10):1920-1923
Diorganotin dichloride-phosphonic diamide complex, [Ph2SnCl2(tBuP(O)(NHiPr)2)2] (1), is prepared by the addition of two equivalents of tBuP(O)(NHiPr)2 to one equivalents of Ph2SnCl2 either in the presence or absence of triethylamine. Compound 1 is a rare example of an all-trans SnA2B2C2 complex that contains H-bonded six-membered rings which are made up of six different main group elements. 相似文献
54.
Borah JM Mahiuddin S Sarma N Parsons DF Ninham BW 《Langmuir : the ACS journal of surfaces and colloids》2011,27(14):8710-8717
Adsorption of organic acid at the mineral oxide-electrolyte interface has been explored. The adsorption of 2,4-dihydroxybenzoic acid onto α-alumina illustrates that specific ion effects show up at very low salt concentration (<0.05 mM). These surprising Hofmeister effects occur at salt concentrations an order of magnitude lower than in a previous study ( J. Colloid Interface Sci. 2010, 344, 482 ). Salts enhance adsorption and specifically at ≤0.05 mM. With increasing concentration of ion, the adsorption density decreases. The results are accounted for by incorporating the ion size and dispersion forces in the theoretical modeling based on ab initio calculations of polarizabilities. The order appears to be governed by ion size, determining the maximum concentration that ions can attain near the surface due to close packing. 相似文献
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Rastogi N Mohan R Panda D Mobin SM Namboothiri IN 《Organic & biomolecular chemistry》2006,4(17):3211-3214
Novel alpha-aminoalkylated conjugated nitroalkenes which inhibit human cervical cancer (HeLa) cell proliferation by binding to tubulin were synthesized by imidazole/LiCl-mediated reaction of conjugated nitroalkenes with N-tosylimines. 相似文献
56.
Namrata Gohain Abhik Bordoloi Amlan J. Kalita Dr. Ankur K. Guha 《Chemphyschem》2023,24(18):e202300581
We report a global planar star-like cluster B3Li3 featuring three planar tetracoordinate boron centres with a rare spin avoided σ-σ diradical character. The cluster was found to be stable towards dissociation into different fragments. The spin density was found to be localized solely on the three boron atoms in the molecular plane. This spin avoided σ-σ diradical character leads to the extension of the coordination number to yield a neutral B3Li3H3 and a cationic B3Li3H3+ cluster with three planar pentacoordinate boron centres in their global minimum structures. The planar geometry of the aninonic B3Li3H3− cluster is slightly higher in energy. The planar global clusters were found to maintain planarity in their ligand protected benzene bound complexes, B3Li3(Bz)3, B3Li3H3(Bz)3 and B3Li3H3(Bz)3+ with high ligand dissociation energies offering candidature for experimental detection. 相似文献