標(biāo)題: Titlebook: Electron Spin Resonance; Elementary Theory an John E. Wertz,James R. Bolton Book 1986 Chapman and Hall 1986 Exchange interaction.Hamiltonia [打印本頁(yè)] 作者: APL 時(shí)間: 2025-3-21 16:50
書目名稱Electron Spin Resonance影響因子(影響力)
作者: 闡釋 時(shí)間: 2025-3-21 23:58
Basic Instrumentation of Electron Spin Resonance,ic field. It is extremely fortunate that this is true, since it is ordinarily very difficult to achieve high sensitivity if the microwave frequency is varied. The difficulty arises largely from the fixed-frequency characteristics of the microwave-resonant cavity (Sec. 2–3.).作者: 平常 時(shí)間: 2025-3-22 02:18 作者: 沉積物 時(shí)間: 2025-3-22 07:20
Double-resonance Techniques,ble Resonance (ENDOR).? His brilliant contributions make it possible in some cases to regain some missing details of hyperfine interaction. For this to be possible, the ESR line being observed must be inhomogeneously broadened. In many systems, this technique completely removes ambiguities. It may p作者: Generator 時(shí)間: 2025-3-22 09:01 作者: exquisite 時(shí)間: 2025-3-22 14:47
Maurice McGregor MD, FRCP(C), FRCP (UK)ic field. It is extremely fortunate that this is true, since it is ordinarily very difficult to achieve high sensitivity if the microwave frequency is varied. The difficulty arises largely from the fixed-frequency characteristics of the microwave-resonant cavity (Sec. 2–3.).作者: exquisite 時(shí)間: 2025-3-22 20:01
Host Guest Complex Chemistry Macrocyclespletely independent and noninteracting. Such would be the case only at infinite dilution. This chapter is concerned with some of the effects of radicals interacting magnetically and chemically with each other and with their environment. The principal effect of these interactions is to give a finite 作者: harangue 時(shí)間: 2025-3-22 22:10 作者: slipped-disk 時(shí)間: 2025-3-23 03:37 作者: narcissism 時(shí)間: 2025-3-23 06:49 作者: 松馳 時(shí)間: 2025-3-23 11:26
https://doi.org/10.1007/978-94-009-4075-8Exchange interaction; Hamiltonian; algebra; eigenvalue; electron; energy; field theory; information; mechani作者: 賄賂 時(shí)間: 2025-3-23 15:38 作者: 一大塊 時(shí)間: 2025-3-23 18:15 作者: subordinate 時(shí)間: 2025-3-23 23:37 作者: spondylosis 時(shí)間: 2025-3-24 04:44 作者: 兇殘 時(shí)間: 2025-3-24 10:32
Maurice McGregor MD, FRCP(C), FRCP (UK) field. As with any spectrometer, one requires a source of radiation and some means of detecting absorption by the sample. The simplest experimental arrangement which fulfills these requirements was indicated in Fig. 1–2.. From this figure one notes that there are two important differences between a作者: 委托 時(shí)間: 2025-3-24 13:12 作者: mitral-valve 時(shí)間: 2025-3-24 15:19
Hamilton College of Further Education be equivalent by virtue of the symmetry of the molecule; in other cases the equivalence may be accidental. The hyperfine splittings from radicals having numerous magnetic nuclei may give spectra rich in line components. The analysis of these spectra may be straightforward; more often a successful a作者: Polydipsia 時(shí)間: 2025-3-24 21:35
https://doi.org/10.1007/978-3-031-04010-8or the naphthalene anion (Fig. 4–16), it is not obvious which set of four equivalent protons should be assigned the larger hyperfine splitting. The same uncertainty is found for the biphenylene anion (Fig. 4–15). Furthermore, the two quintet splittings in the anthracene anion (Fig. 4–17) were not as作者: Orchiectomy 時(shí)間: 2025-3-24 23:50
Introduction to the Chronic Pain Patient,e carbon atom adjacent to the proton. That is . Isotropic proton hyperfine splittings were shown in Chap. 3 to arise when there is a net unpaired-electron density at the proton. In π radicals, the unpaired electron resides in a π-molecular orbital constructed from a linear combination of 2.. carbon 作者: FLAGR 時(shí)間: 2025-3-25 06:45
Antifungal Host Defense Peptidese to extract details of intra- and intermolecular interactions, molecular configuration, site symmetry, as well as the nature and the location of neighboring atoms. Further, one observes in rigid solids many paramagnetic species which are too reactive or too unstable to be observed in liquid solutio作者: VERT 時(shí)間: 2025-3-25 10:25 作者: Feature 時(shí)間: 2025-3-25 13:17
https://doi.org/10.1007/978-1-4020-8286-3ron in the system. In the absence of a magnetic field, the spin states for these systems are degenerate. In fact, for all systems with an . number of electrons, a theorem due to Kramers? guarantees at least a twofold degeneracy which can only be removed by the application of a magnetic field. Thus, 作者: Instrumental 時(shí)間: 2025-3-25 19:32
https://doi.org/10.1007/978-3-319-08410-7vestigations. Observation of the ESR spectra of these ions in low concentrations is generally no more difficult than for free radicals, though linewidths may be much greater, and low temperatures may be required to see a spectrum at all. However, ..? The results of such a detailed analysis may provi作者: 沉積物 時(shí)間: 2025-3-25 21:02
Anisakidosis: Global Point of View,dequately described by the use of second-order perturbation theory. In Chap. 12 we encounter examples in which the crystal field does not completely remove the orbital degeneracy of the free ion. Hence, the ground state will have a net . angular momentum. It is not possible to treat the spin and orb作者: 殺死 時(shí)間: 2025-3-26 00:10
https://doi.org/10.1007/978-1-349-12477-0e same system there are two or more nuclei of the same spin, there is ambiguity in the assignment of hyperfine multiplets. Indeed, some hyperfine lines of spectra reproduced in this book were originally assigned to the wrong nucleus. Further, if the spacing of a set of hyperfine lines does not excee作者: Abbreviate 時(shí)間: 2025-3-26 05:19 作者: TERRA 時(shí)間: 2025-3-26 08:55
978-94-010-8307-2Chapman and Hall 1986作者: cardiopulmonary 時(shí)間: 2025-3-26 13:22
Antifungal Host Defense Peptidese to extract details of intra- and intermolecular interactions, molecular configuration, site symmetry, as well as the nature and the location of neighboring atoms. Further, one observes in rigid solids many paramagnetic species which are too reactive or too unstable to be observed in liquid solution.作者: cavity 時(shí)間: 2025-3-26 16:57 作者: gospel 時(shí)間: 2025-3-27 00:29 作者: 賞心悅目 時(shí)間: 2025-3-27 04:06 作者: 地名表 時(shí)間: 2025-3-27 05:34 作者: BRAND 時(shí)間: 2025-3-27 11:27
Basic Instrumentation of Electron Spin Resonance, field. As with any spectrometer, one requires a source of radiation and some means of detecting absorption by the sample. The simplest experimental arrangement which fulfills these requirements was indicated in Fig. 1–2.. From this figure one notes that there are two important differences between a作者: 招致 時(shí)間: 2025-3-27 15:11 作者: Gerontology 時(shí)間: 2025-3-27 21:31 作者: 受辱 時(shí)間: 2025-3-27 22:32
,Interpretation of Hyperfine Splittings in π-type Organic Radicals,or the naphthalene anion (Fig. 4–16), it is not obvious which set of four equivalent protons should be assigned the larger hyperfine splitting. The same uncertainty is found for the biphenylene anion (Fig. 4–15). Furthermore, the two quintet splittings in the anthracene anion (Fig. 4–17) were not as作者: 親愛 時(shí)間: 2025-3-28 03:49 作者: 昆蟲 時(shí)間: 2025-3-28 07:06
Interpretation of the ESR Spectra of Systems in the Solid State,e to extract details of intra- and intermolecular interactions, molecular configuration, site symmetry, as well as the nature and the location of neighboring atoms. Further, one observes in rigid solids many paramagnetic species which are too reactive or too unstable to be observed in liquid solutio作者: 神化怪物 時(shí)間: 2025-3-28 11:58
Time-dependent Phenomena, a single radical ion. This is not true, since if the signal from a single naphthalene anion could be detected, it would consist of but . line! For example, the line occurring at the highest field in Fig. 4-16 corresponds to all eight protons having spin α (that is, .. = 1/2). Furthermore, if enough作者: Ingest 時(shí)間: 2025-3-28 16:25 作者: 機(jī)密 時(shí)間: 2025-3-28 21:21
Transition-metal Ions. I,vestigations. Observation of the ESR spectra of these ions in low concentrations is generally no more difficult than for free radicals, though linewidths may be much greater, and low temperatures may be required to see a spectrum at all. However, ..? The results of such a detailed analysis may provi作者: OCTO 時(shí)間: 2025-3-29 00:32 作者: Biofeedback 時(shí)間: 2025-3-29 05:29
Double-resonance Techniques,e same system there are two or more nuclei of the same spin, there is ambiguity in the assignment of hyperfine multiplets. Indeed, some hyperfine lines of spectra reproduced in this book were originally assigned to the wrong nucleus. Further, if the spacing of a set of hyperfine lines does not excee作者: ALIBI 時(shí)間: 2025-3-29 08:54
Biological Applications of Electron Spin Resonance,amagnetic resonant absorption.? In that first report, a variety of biological systems, such as leaves, seeds, and tissue preparations, were shown to contain free radicals. A definite correlation was found between the concentration of the radicals and the metabolic activity of the material. This work作者: 羊欄 時(shí)間: 2025-3-29 15:19
struc- tural information on a variety of paramagnetic organic and inorganic sys- tems. It is doubtful that even much later than 1945 any chemist would have been so bold as to predict the great diversity of systems which have proved amenable to study by ESR spectroscopy. In this book we have attempt作者: painkillers 時(shí)間: 2025-3-29 18:34 作者: glacial 時(shí)間: 2025-3-29 21:24
Anisakidosis: Global Point of View,y with the lowest-lying state. It is essential to determine the degeneracy and eigenfunctions for this state as these determine the characteristics of the ESR spectrum. The ions in the various crystal fields to be considered in this chapter are listed in Table 12–1.作者: cogent 時(shí)間: 2025-3-30 01:28
Transition-metal Ions. II. Electron Resonance in the Gas Phase,y with the lowest-lying state. It is essential to determine the degeneracy and eigenfunctions for this state as these determine the characteristics of the ESR spectrum. The ions in the various crystal fields to be considered in this chapter are listed in Table 12–1.作者: 一大群 時(shí)間: 2025-3-30 04:05
Nuclear Hyperfine Interaction,ng one unpaired electron (. = 1/2), although much of the following will apply equally well to molecules containing more than one unpaired electron (. ≥ 1). States with . = 1/2 are referred to as . states since the multiplicity (2. + 1) is equal to 2.作者: 積極詞匯 時(shí)間: 2025-3-30 10:24 作者: Default 時(shí)間: 2025-3-30 12:53
Biological Applications of Electron Spin Resonance, appears to confirm earlier ideas that free radicals are involved as intermediates in metabolic processes. However, the question as to which free radicals are involved in a given metabolic process proved to be a much more difficult question to answer.作者: 山羊 時(shí)間: 2025-3-30 17:41
Energy-level Splitting in Zero Magnetic Field. The Triplet State,electrons, a theorem due to Kramers? guarantees at least a twofold degeneracy which can only be removed by the application of a magnetic field. Thus, in principle, an ESR spectrum should be obtainable for any system with an odd number of electrons (. = 1/2, 3/2, 5/2, …).作者: Gobble 時(shí)間: 2025-3-31 00:44 作者: IRATE 時(shí)間: 2025-3-31 03:14
Hamilton College of Further Educationnalysis requires some experience. This chapter presents a large number of experimental spectra ranging from the simple to the complex. The reader is urged to consider each spectrum carefully and to understand its analysis before proceeding to the next. Section 4–7 presents a number of rules which should aid in the analysis of complex spectra.
