搜索结果: 1-15 共查到“理学 NMR Study”相关记录19条 . 查询时间(0.14 秒)
^{75}As NMR study of the growth of paramagnetic-metal domains due to electron doping near the superconducting phase in LaFeAsO_{1-x}F_{x}
paramagnetic-metal domains electron doping superconducting phase LaFeAsO_{1-x}F_{x}
2012/2/27
We studied the electric and magnetic behavior near the phase boundary between antiferromagnetic (AF) and superconducting (SC) phases for a prototype of high-T_c pnictides LaFeAsO_{1-x}F_{x} by using n...
Anisotropic spin fluctuations and superconductivity in "115'' heavy fermion compounds: 59Co NMR study in PuCoGa5
StoAnisotropic spin fluctuations superconductivity NMR study in PuCoGa5
2010/11/24
We report results of 59Co nuclear magnetic resonance measurements on a single crystal of super-
conducting PuCoGa5 in its normal state. The nuclear spin-lattice relaxation rates and the Knight shifts...
Magnetic order, metamagnetic transitions, and low-temperature spin freezing in Ca2Co2O6: an NMR study
Magnetic order metamagnetic transitions low-temperature spin
2010/11/18
We report on a 59Co NMR investigation of the trigonal cobaltate Ca3Co2O6 carried out on a single crystal, providing precise determinations of the electric field gradient and chemical shift tensors, an...
Solid State NMR Study of Polystyrene Nanolatex Particles(I) 13C Spin-Lattice Relaxation Time
2007/7/28
期刊信息
篇名
Solid State NMR Study of Polystyrene Nanolatex Particles(I) 13C Spin-Lattice Relaxation Time
语种
英文
撰写或编译
作者
唐亚林,屈小中,陈柳生,金熹高
第一作者单位
刊物名称
Chinese Chemical Letters
页面
2001, 12, 353
出版日期
2001年
月
日...
Origin and diagenesis of polyphosphate in lake sediments: A 31 P-NMR study
polyphosphate lake sediments
2014/5/14
Polyphosphate (poly-P) was detected with the use of
31
P nuclear magnetic resonance (NMR) spectroscopy in
sediments from a large variety of lakes with different trophic state and morphometry. In th...
13C-and 31P-NMR Study of Tetracarbonylbis(diphenylphosphino)alkanemetal(0) Complexes of The Group 6 Elements
Chromium Molybdenum Tungsten Carbonyl Diphosphine NMR
2010/6/29
Tetracarbonylbis(diphenylphosphino)alkanemetal(0) complexes of the general formula M(CO)4[(C6H5)2P (CH2)nP(C6H5)2] (M: Cr, Mo, W; n: 1, 2, 3) were synthesized from the reaction of M(CO)4(h2:2-1,5-cycl...
Nuclear Magnetic Resonance (NMR) Study of Cd2+ Sorption on Montmorillonite
Adsorption Cadmium Montmorillonite Nuclear Magnetic Resonance
2011/12/8
Abstract: 113Cd solid-state nuclear magnetic resonance (NMR) was used to identify possible Cd2+ adsorption sites in montmorillonite. The montmorillonite was treated with 0.1 and 1 M CdCl2 aqueous solu...
Si,Al ordering in the double-ring silicate armenite, BaCa2Al6Si9O30?H2O: A single-crystal X-ray and 29Si MAS NMR study
BaCa2Al6Si9O30?H2O single-crystal
2012/3/30
29The SiMASNMRspectrumofarmenitefromWasenalp(Valais,Switzerland)indicates
completeSi,Alordering.Thesamechemicalshifts(82.3,95.0,and101.8ppm)were
alsomeasuredforarmenitefromRe!migny(Quebec,Canada),ho...
19F NMR Study of Flux-Line Dynamics in Fluorinated YBa2Cu4O8
19F NMR Flux-Line Dynamics Fluorinated YBa2Cu4O8
2010/4/16
Measurements of the 19F NMR linewidth D n and spin-lattice relaxation rate 1/T1 have been performed in an oriented powder sample of fluorinated YBa2Cu4O8 at temperatures 4 < T < 300 K and static magne...
Structure and dynamics of magnesium in silicate melts: A high-temperature 25Mg NMR study
Structure dynamics magnesium silicate melts high-temperature
2012/4/1
25Mg NMR spectra for several silicate and aluminosilicate melts were obtained from 1000–1470 8C. The peaks are initially very broad, but narrow with increasing temperature to near 500 Hz at the highes...
Cation mixing in natural MgAl2O4 spinel: A high-temperature 27Al NMR study
Cation mixing MgAl2O4 spinel high-temperature 27Al NMR study
2012/4/6
ThepositionaldisorderofMg andAl cationsbetweenthetetrahedralandoctahedralsitesinnaturalMgAlO spinelhasbeeninvestigatedby AlMASNMRatroomtem-2 427peratureandin-situhigh-temperatureAlNMRspectroscopyupto1...
Si-Al ordering in leucite-group minerals and ion-exchanged analogues: An MAS NMR study
Si-Al leucite-group minerals ion-exchanged analogues MAS NMR study
2012/4/6
Twoseriesofleucitegroupmaterials,withK,Rb,andCsasextra-frameworkcations,havebeensynthesizedbyionexchangefromanaturalwell-orderedanalciteandanatural29 27disorderedleucite.Siand AlMASNMRdatafortheanalci...
NMR Study of Dynamics and Evolution of Guest Molecules in Kaolinite/Dimethyl Sulfoxide Intercalation Compound
2H NMR 13C NMR Dimethyl Sulfoxide Intercalation Compound Kaolinite Layered Silicate
2011/12/22
Abstract: Motion of the guest molecules in kaolinite/dimethyl sulfoxide (DMSO) intercalation compounds Al2Si2O5(OH)4?CH3)2SO has been studied by means of solid-state nuclear magnetic resonance (NMR) i...
MAS NMR study of pentacoordinated magnesium in grandidierite
MAS NMR study pentacoordinated magnesium grandidierite
2012/4/5
The11.7T Mg, Al, Si,and BMASNMRspectraarereportedforwell-charac-terizedgrandidierite,(Mg,Fe)AlSiBO ,whichcontainsbothAlandMgin?vefoldcoor-dinationwithoxygen.TheMgspectrumisthe?rsttobereportedfor Mg,an...
Protons in the magnesium phosphates phosphoellenbergerite and holtedahlite: An IR and NMR study
Protons magnesium phosphates phosphoellenbergerite holtedahlite IR and NMR study
2012/4/5
Two structurally related magnesium phosphates, phosphoellenbergerite (P63mc) and holtedahlite (P63), have been investigated using a combination ofhigh-frequency IR and lH MAS,31p MAS,and 31p CPMASNMR ...