|
|
 |
| Àâòîðèçàöèÿ |
|
|
|
| Ïîèñê ïî óêàçàòåëÿì |
|
|
|
|
|
|
|
 |
|
|
|
| Lambert J.B., Mazzola E.P. — Nuclear Magnetic Resonance Spectroscopy |
|
|
|
| Ïðåäìåòíûé óêàçàòåëü |
Magnets, permanent 31
Magnets, superconducting 31 36—37
Magnitude spectrum 183
Mannosan triacetate,  spectrum 145
Matching see "Probes adjustment"
McConnell equation 65—67
Medium, achiral 334 338 340
Medium, effects 75—79 214
Medium, racemic 334 338 340
Menthol, 2D INADEQUATE spectrum 199—200
Methane,  chemical shift 82
Methane, chemical shift 69
Methane,  coupling constant 105
Methane, HCH coupling 107
Methane, solvent effects on 78
Methanol, chemical shift 70
Methanol, spectrum 23
Methanol, HCH coupling 107
Methanol, hydroxyl exchange 137
Methano[10]annulene 65
Methaqualone 218—219
Methine shielding 67 70
Methyl acetate 5—7 12—13 18
Methyl acetate, spectrum 6
Methyl acetate, shielding 67 70
Methylamine, chemical shift 70
Methylene shielding 67 70
Mixing period 196—199 204 257 267—270 331
MLEV-16 148
MLEV-17 256 see
Multiple quantum coherence 161—162 184 189—190 204
Multiple quantum coherence, filtration 183—184
Multiple resonance 143—148
N,N-Dimethylformamide 199
N,N-Dimethylformamide, amide rotation 137
N,N-Dimethylformamide, solvent effects on 70 79
N-Methylpipcridinc 67
Naphthalene, chemical shift 92
Naphthalene, HCCH coupling 112
Natural abundance 21—22
Natural abundance, sensitivity 21—22
Negative absorption 301
Negative absorption, dispersion 301
Neopentane, chemical shift 83
Newman projections 335
Nitriles, chemical shifts 86
Nitrobenzene, chemical shift 87
Nitrobenzene, chemical shift 73—74
Nitrogen inversion 139—140
Nitrogen-14 line widths 136
Nitrogen-15 couplings 106 108 119 121
Nitromethane,  line width 167
Nitromethane, chemical shift 71
NOE see "Nuclear Overhauser effect"
NOESY 196—199 201—203 207 215—216 220 268—269 290—293 331—332
NOESY, COSY and EXSY cross peak discrimination 268
NOESY, mixing and repetition time considerations 268
NOESY, phase-sensitive 197 268
NOESY, signal cancelation from COSY and EXSY artifacts 268
NOESY-HMQC 202
NOESY-TOCSY 202
Noise 45
Noise, aliased 46
Noise, decoupling 47 146
Noise, digitization 46 see
Noise, filtering 42
Noise, thermal 45—46
Nonlocal electron currents 62—68
Nonselective irradiation 146
Norbornanes, long-range coupling 114
Norbornene, chemical shifts 67—68 72
Norbornyl cation 141
Normality 303
Nuclear Overhauser effect 47—48 57 148—153 192 195—198 209 237—240 321 331
Nuclear Overhauser effect, buildup rate 196—197 203
Nuclear Overhauser effect, difference 205
Nuclear Overhauser effect, double pulsed field gradient spin echo-NOE experiment 240
Nuclear Overhauser effect, NOE difference 238—240
Nuclear Overhauser effect, PFG 203—205
Nuclear Overhauser effect, steady-state 237
Number of data points see "Data points"
Nyquist condition 40 46
Oblate ellipsoid 64
Observe pulse time see "Pulse width"
Off-diagonal peaks 175—176
Off-resonance decoupling 146—147 153
Off-resonance decoupling in decoupler calibration 60
One-bond coupling 104—106 119 123 162—163 190 192—193
One-dimensional NMR experiments 35—36 46—48 52 233—240
Optically active solvent 100
Ortho coupling 111—112
Orthogonality 303
Overhauser enhancement factors 149—150
Oversampling 46
Oximes, chemical shifts 88
P,P-COSY 187
Parallel transition 175—176 181 183
Paramagnetic impurities 321
Paramagnetic impurities, relaxation 132 153
Paramagnetic impurities, shielding 80—82 86 118
Paramagnetic impurities, shift reagents 118
Paramagnetic impurities, substances 233
Partial relaxation 204
Partially relaxed spectra 135
Pascal's triangle 16—17 98
Passive coupling 182 254
Pauli exclusion principle 104
Peak suppression 135 144 146
Penicillin 152
Pentane, chemical shifts 83
Perfluorocyclohexane 69
Permanent magnets see "Magnets"
PFG see "Pulsed field gradient"
Phase correction 52—54
Phase correction, first-order in 1D 53—54 57
Phase correction, first-order in 2D 250
Phase correction, zero-order in 1D 53
Phase correction, zero-order in 2D 250
Phase cycling 45 148 162—165 180 184 197 204 331—332
Phase cycling, number of scans to accommodate 243
Phase errors, correction 52—54
Phase errors, distorted signals 41
Phase errors, first-order 53
Phase errors, zero-order 53
Phase quadrants 183—184
Phase-sensitive COSY 183—184 252 331
Phase-sensitive COSY, detectors 41
Phase-sensitive COSY, dispersive tail problem 252
Phase-sensitive COSY, representation 241 244 246—247 250
phasing 183 185
Phenanthro[3, 4-b]thiophene 212
Phenols, chemical shifts 75
Phosphorus inversion 140
Phosphorus-31 couplings 106 109 119
Piperidine, INADEQUATE spectrum 163
Polarization transfer 158 187 236 261 265
Pople notation 98 100
Population inversion 11
Population inversion, transfer see "Magnetization transfer"
Positive absorption 301
Positive absorption, dispersion 301
Power-gated decoupling 151
Precession 3 11—12
probes 32
Probes, adjustment 34—35
Prochiral groups 334 337 339
Product-operator formalism 322—323
Progesterone spectrum 151
Progressive transition 175 183
Prolate ellipsoid 64 66
| Proline 177—180
Propyne, long-range coupling 113
Pseudoaxial position 291
Pseudoequatorial position 291—292
Pulse, imperfections 163—165
Pulse, read 242
Pulse, ringdown 250
Pulse, width 47 see
Pulse, width, calibration 58—60
Pulsed experiments 11—13
Pulsed field gradients 189 194 200 203—206 232 240 332
Pulsed field gradients, in 2D 251—252
Pulses, 90° 43
Pulses, observation 47 52
Pyramidal inversion 139—140
Pyridine, chemical shift 87
Pyridine, spectrum 159
Pyridine, chemical shift 74
Pyridine,  coupling constant 106
Pyridine, INEPT spectrum 158—159
Pyrimidine 219
Pyrrole, chemical shift 87
Pyrrole, line width 167
Pyrrole, chemical shift 74
Pyrrole, spectrum 136—137
Quad images 165 180
Quadrature detection 165 324—327
Quadrature detection, phase detection 41 43 45
Quadricyclane, coupling constant 105
Quadrupolar broadening 178
Quadrupolar broadening, nuclei 2 4 13 22 25—26 76
Quadrupolar broadening, relaxation 22 76 132 135—136 320—321
Quadrupole moment 22 136
Quaternary carbon, relaxation 132 152
Quaternary carbons, in HETCOR 188
Quinoline, long-range coupling 114
Quinoline, NCC coupling 109
R value 111
Radial term 80—81 84 86
Raising operator 306 310—311
Ramsay's equation 80 91
Reaction rates 136—143
Read pulse 242
Real part 49 183 299—300
Real part, spectrum 50 see
REBURP 166
Receiver 35 43 45
Receiver, coils 32 34
Receiver, dead time 57
Receiver, gain in 1D 45—46
Receiver, gain in 2D 243
Receiver, overload 45
Receiver, phase 41
Receptivity 21—22
Reference, sensitivity standard 60
Reference, internal 55—56
Reference, primary 55
Reference, secondary 55—56
Reference, substances 21—22
referencing see "Zero referencing"
Refocused INEPT 159—160
Regressive transition 175 183
Relative signs, of coupling constant 105 314
Relaxation 10 131—136
Relaxation, agents 321
Relaxation, delay time in 1D 43—44 47 60
Relaxation, delay time in 2D 242—243 251
Relaxation, time 10 12 302 see "Spin-spin
Relayed coherence transfer 185 194—195 207
Relayed COSY 185—186
Repetition time 242—243 268
Resolution 51—52
Resolution, digital 50—52
Resolution, enhancement 48—49
Resolution, spectral 39 44 51
Resonance effect 63 68 72—74 86—87 112
Ring currents 64—66 72—74
Ring reversal 24 104 110 122—123 167
Rise time 60
ROESY 197—199 207 269—270
ROESY, phase-sensitive 198 269
ROESY, spin-lock power and mixing time considerations 269
ROESY, TOCSY and EXSY cross peak discrimination 269
Rotamers 102—103 338—340 see
Rotating coordinate system 7 11 299 324 327
Rotating coordinate system, frame 7 12 197—198
Rotational rates, effects on NMR spectra 336 338—339
S/N ratio see "Signal-to-noise ratio"
Sample heating, in broadband decoupling 242
Sample heating, in HMQC 258
Sample heating, in HSQC 260
Sample heating, with high-dielectric solutions 242
Sample preparation 33—34
Sample preparation, size limitation 32
Sample preparation, solubility limitation 32
Sample spinning 37
Sample spinning for resolution improvement 36
Sample spinning, not used in 2D 251
Sample spinning, shimming 37 39
Sample spinning, sidebands 37 39
Sample tubes, cleaning 33
Sample tubes, filling 33
Sample tubes, placement 34
Sample tubes, selection 33
Sampling rate 39—40
Satellite peaks 18 58 118—119 162—163 189
Saturation 10 35 37
Saturation, transfer 143—144 165 see
Scalar coupling see "Coupling constant"
Scalar coupling, relaxation 132 320
Scan number, per time increment in 2D 243
Scan number, related to S/N improvement in 1D 45
Schroedinger equation 302—303
Second-order effects 16 98 102 116—118
Second-order effects, spectra 17 56 98—101 115—116 123 186 309—316
Segmental motion 135 317
Selection rule 304 306
Selective decoupling 175
Selective excitation 165
Selective irradiation 135 146
Sensitivity enhancement, by INEPT 156—162
Sensitivity enhancement, by NOE 148—149 152
Sensitivity enhancement, Ernst-angle considerations 43—44
Sensitivity enhancement, oversampling 46
Shaped pulses 166 240 270
shielding 5 25—26 62
Shim coils 36
shimming 36—39
Shimming, automatic 37
Shimming, gradient 39
Shoolery's rule 71 91
Sideband detection 165
Sigmatropic shifts 142
Signal averaging 45
Signal cancelation, in DEPT spectra 237
Signal cancelation, in DQF-COSY spectra 246
Signal cancelation, in multiplicity-edited HSQC spectra 271—272
Signal cancelation, in NOESY spectra 268
Signal cancelation, in ROESY spectra 269
Signal cancelation, phasing 52—54 58
Signal cancelation, threshold level 250 279
Signal-to-noise ratio 57
Signal-to-noise ratio, improved by exponential weighting 48
Signal-to-noise ratio, improved by exponential weighting, signal averaging 45 47
Signal-to-noise ratio, reduced by resolution enhancement 49
Single bonds, rotation about 138—139
Single quantum coherence 161—163 165 183 189—192 194 204 326—327 330—332
Slow exchange 23—24 137 142—143 198
Soft pulses 166
Solid-state NMR 32 35
|
|
|
| Ðåêëàìà |
|
|
|
|
|
Î ïðîåêòå