ANALYSIS OF NMR LINESHAPES OF RIGID-LATTICE MULTISPIN SYSTEMS .2. BOND LENGTH AND CHEMICAL SHIELDING IN CF4

被引：15

作者：

GARG, SK

DAVIDSON, DW

RIPMEESTER, JA

机构：

[1] Division of Chemistry, National Research Council of Canada, Ottawa

来源：

JOURNAL OF MAGNETIC RESONANCE | 1979年 / 36卷 / 03期

关键词：

D O I：

10.1016/0022-2364(79)90109-4

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The 19F NMR lineshape for the CF4 molecule enclathrated in the heavy water clathrate hydrate was obtained in magnetic fields of 4 and 14 kG at low temperatures (T ≤ 4.2 K). A fit of the 4-spin lineshape by inclusion of chemical shielding anisotropy in a previously described computer program yielded 1.330 ± 0.005 Å for the CF bond length and 138 ± 4 ppm for the difference between chemical shifts parallel and perpendicular to the CF bond. Calculation of the spin-rotation tensor gave Cav = - 6.83 ± 0.30 kHz and (C∥ - C⊥) = 3.62 ± 0.15 kHz. © 1979.

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页码：325 / 331

页数：7

相关论文

共 36 条

[1] NEUTRON DIFFRACTION BY THE GASES N-2, CF4, AND CH4 [J].

ALCOCK, NZ ;

HURST, DG .

PHYSICAL REVIEW, 1951, 83 (06) :1100-1105

[2]

ANDREW ER, 1963, P PHYS SOC, V8, P986

[3]

Appleman B. R., 1974, ADV MAG RESONANCE, V7, P231, DOI DOI 10.1016/B978-0-12-025507-8.50010-3

[4] CRYSTAL-STRUCTURE OF ALPHA-CF4 [J].

BOLSHUTKIN, DN ;

GASAN, VM ;

PROKHVATILOV, AI ;

ERENBURG, AI .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS, 1972, 28 (DEC15) :3542-3547

[5] THE STRUCTURES OF THE TRIFLUOROMETHYL HALIDES [J].

BOWEN, HJM .

TRANSACTIONS OF THE FARADAY SOCIETY, 1954, 50 (05) :444-451

[6] The electron diffraction investigation of some non-metallic halides [J].

Brockway, LO ;

Wall, FT .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1934, 56 (07) :2373-2379

[7]

BROCKWAY LO, 1958, 11 CHEM SOC SPEC PUB

[8] REORIENTATIONAL AND ANGULAR-MOMENTUM CORRELATION TIMES IN GASEOUS TETRAFLUOROMETHANE AT MODERATE DENSITIES [J].

CAMPBELL, JH ;

SEYMOUR, SJ ;

JONAS, J .

JOURNAL OF CHEMICAL PHYSICS, 1973, 59 (08) :4151-4156

[9] NUCLEAR SPIN RELAXATION STUDY OF SPIN-ROTATION INTERACTION IN SPHERICAL TOP MOLECULES [J].

COURTNEY, JA ;

ARMSTRONG, RL .

CANADIAN JOURNAL OF PHYSICS, 1972, 50 (12) :1252-+

[10] STUDY OF COLLISION NARROWING BY COMPARISON OF MOLECULAR-BEAM AND GAS-PHASE NUCLEAR RESONANCE SPECTRA [J].

CRAPO, LM ;

FLYNN, GW .

JOURNAL OF CHEMICAL PHYSICS, 1965, 43 (05) :1443-&

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