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全书4个压缩卷,解压后7.91M
) K. A0 v' F/ u9 q书名Nuclear Magnetic Resonance applications to organic chemistry
% S* }, T, q5 A6 Z* E作者John ID. Roberts
! D8 n. Z. \6 S2 C% [出版社McGRAW-HILL BOOK COMPANY, IN L7 I. `; C6 g
出版日期1959
- K, C. K7 W) M' v7 r) m+ K% h出版号 58-138883 u2 ]: w$ v4 S, x0 D3 m
页数133
6 m9 Q+ H. p( w% S; o内容简介
8 l" z4 D/ U* S" BThis brief book is the outgrowth of some forty lectures in which it was . l5 V! y' W4 Z* |9 m
attempted to explain the phenomenon of nuclear magnetic resonance
( n# n" v; P! L' |- Cabsorption and the uses of high-resolution nuclear magnetic resonance ! s4 R( W4 f" z
spectroscopy to organic chemists whose background, like that of the 9 n4 Z+ _4 l* o/ X6 c4 t
author, has often been deficient in nuclear and-qlectromagnetic theory. . I. a! M0 W! t+ C, o4 O! e$ v" g
Quite a number of suggestions were received for presentation of the 2 J' V; Q4 }! l8 k: V
material in printed form with illustrations based on the lecture slides.
1 a! `1 v6 ]; b9 NThis has now been done, and it is hoped that the result will bepf service
; Y% m' i& s. |) H Go practicing chemists and students as a guide to various applic+ns of 0 R0 R) w/ E4 v& J |
NMR spectroscopy and an introduction to more authoritative works. . y, _2 D* }" a5 B: L/ J" A
Throughout, the coverage is illustrative rather than comprehensive. 7 L3 h v0 S0 Y# k/ Q9 `
目录
1 o6 ]+ M3 C% c5 a8 e7 p1 . Introduction . The Nuclear Resonance Phenomenon / T( ?' @# f& A7 ^& Y% {" I3 i
1.1 . Introduction ........... : d/ @3 \, ~/ M6 i! V1 r8 E
1.2 . Nuclear Magnetic Resonance Spectrometers .
% o7 ^& m, U: n1 o1.3 . Magnetic Properties of Nuclei . Nuclear Spin ; I# G5 B: A1 V' o; D
1.4 . Magnetic Quantum Numbers ...... & y0 h; P8 x$ ?) A0 b1 L
1.5 . Nuclear Precession ......... / H, n; `, N( a4 w" T" f; i0 J
1.6 . Nuclear Relaxation ......... , u) w3 R% f( i+ J
1.7 . Longitudinal Relaxation, TI ...... 4 `: ], G0 l6 ]* N0 U0 v. T; G- g
1.8 . Transverse Relaxation, T, ....... $ Y8 D. t9 x! x) G) ~" ?9 [
1.9 . The Nuclear Resonance Signal ..... 4 H9 j# w7 u! v+ u% S/ U
1.10 . Relaxation Effects on NMR Signals .... * w$ x0 |8 P1 l. H, d1 @& F% d
1.11 . Properties of Magnetic Nuclei of Interest to " ]( @3 j0 c! S3 a
Organic Problems .......... 0 @4 G7 G; Y# Q7 K4 t1 L q
2 . The Chemical Shift .............. 5 n6 M3 t: g& m
2.1 . Introduction . The Chemical-shift Parameter .... / q" P# ~- C- h8 s+ J& w, Y/ q
2.2 . Measurement of Chemical Shift . .......
# Z9 D; D/ k# r" k2.3 . Some Factors Which Influence 6 ....... ; U; z8 a A1 V* t! p. s2 `5 V, v
2.4 . Chemical Shifts for Other Nuclei ....... 2 D& Q5 D5 w7 c" F/ x: u4 S
2.5 . Proton 6 Values and Electronegativity ...... 2 o, K4 W3 w, c$ L& K* K
2.6 . 6 and Hammett's a Constants ......... # {; @8 _& x- j6 y/ _* R
2.7 . Resonance Signal Areas and Widths ...... # A* z+ E8 g: {/ o1 C3 g( p0 J
2.8 . Chemical Shifts and Organic Structure Determinations . % r. I6 R$ j: _
General Considerations ..........
& S7 H( S* G. X* r) o* v; w/ c9 k2.9 . Illustrative Analysis of a Reaction Product .... * b+ B# k: V6 l P7 w3 k
2.10 . Accentuation of Chemical Shifts by Paramagnetic Salts , Z" u# v2 T5 m+ w
3 . Spin-Spin Splitting ........... % r9 K% f1 Y. [/ }% C' `' v& O8 R
3.1 . The High-resolution Ethanol Spectrum ... ..... 42 7 K) L9 D5 r; p4 g3 t
3.2 . Spin-Spin Splitting in a Single Crystal ... ..... 43 . Q' l1 ~4 k9 \/ H8 w* p( L! t
3.3 . Spin-Spin Splitting in Liquids ...... ..... 45
8 b( `( A. r& v4 \3.4 . Spin-Spin Splitting in the Ethyl Group ... ..... 46
& b( ]: g% Z! ?6 I! v8 y$ y$ p3.5 . More Complex Spin-Spin Splittings .... ..... 48 % o7 G" i( i! j6 {7 x4 w# ^
3.6 . Magnitudes of Coupling Constants .... ..... 53
2 z' k" b9 k; j# R1 z3.7 . Coupling between Equivalent and Nearly Equiv ,alent Protons . 55 ! \& R- o2 U0 b
3.8 . Spin-Spin Couplings in Rigid Systems ... .... 57 , X+ t6 h9 p1 N w9 d; z* p
3.9 . Spin-Spin Splitting and Molecular Asymmetry ..... 58 8 G3 X5 {' e4 {2 d; m: ]- L; g+ w
4 . Nuclear Magnetic Resonance and Reaction Kinetics ..... 61 ! w( ^8 C8 T; I9 u) A
4.1 . Introduction . Proton Exchange in Water-Acetic : A, `/ P; ]6 @
Acid Mixtures ................ 61 ' G3 g* l7 j; m! `" V" O0 d
4.2 . Relationship between Resonance Line Shapes and ' J; F4 j( `; ]1 l/ ~4 s
Exchange Rates ............... 63 ; j0 ~: ?- c$ a( Y
4.3 . Proton Exchange in Ethanol-Water Mixtures ..... 64
8 G, B" l5 M/ |' m, @2 D8 u4.4 . Ethyl Acetoacetate and Its En01 Form ........ 67
, ]/ E0 q2 P) J/ Y. O$ n" w; L4.5 . Rates of Rotation Around 40-N< Bonds of Amides ... 69 / q2 d5 b+ k; U2 B: D
4.6 . Restricted Rotation in Ethane Derivatives ...... 71 9 ^7 y7 \/ v, N. l- v# W
4.7 . Nitrogen Inversion Frequencies of Cyclic Imines .... 74
0 K" j" I6 a# d# _# m5 W u% |* |4.8 . Proton Exchange in Ammonia and Ammonium Ions ... 76 ) W2 t+ x5 ^7 N$ P
5 . Nuclear Quadrupole Relaxation Effects . Double Resonance ... 80
! A# S; c6 i/ O/ N0 ~% G5.1 . Proton Resonance Line Broadening by 1iN ...... 80
$ T0 T+ G/ _6 _, ?5.2 . Nuclear Quadrupoles and Quadrupole-induced Relaxation . . 81
2 x# l+ x, X$ [& E* k3 {5.3 . Proton N-K Resonance of Pyrrole . Double Resonance . . 83 9 b* ? p" m+ m" k
5.4 . Quadrupole-induced Relaxation with Other Nuclei .... 84 2 I4 M4 ~ Z3 U1 F0 B
5.5 . Applications of Double Resonance ......... 86
Q, q& G$ P) S' j0 a- C7 E1 ~Appendix A . The Bloch Equations ............ 88
6 y" h( b. f: Q1 ]Appendix B . Bibliography .............. 99 5 f; U9 w: i! B0 ~# o. i5 X+ e
Appendix C . Problems ................ 100 8 Y. x! O8 Z4 ~: Z1 @" s- y9 a
Name Index ................... 111 ) P$ d: l/ _8 u# F; V) g1 v
Subject Index ................... 113 |
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