標(biāo)題: Titlebook: Stereochemical Analysis of Alicyclic Compounds by C-13 NMR Spectroscopy; James K. Whitesell,Mark A. Minton Book 1987 Chapman and Hall Ltd [打印本頁] 作者: Considerate 時(shí)間: 2025-3-21 18:16
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書目名稱Stereochemical Analysis of Alicyclic Compounds by C-13 NMR Spectroscopy影響因子(影響力)學(xué)科排名
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作者: abysmal 時(shí)間: 2025-3-21 20:17 作者: 慟哭 時(shí)間: 2025-3-22 02:21 作者: 改良 時(shí)間: 2025-3-22 08:16 作者: Bph773 時(shí)間: 2025-3-22 11:57 作者: Shuttle 時(shí)間: 2025-3-22 15:24 作者: 土坯 時(shí)間: 2025-3-22 20:05 作者: Contend 時(shí)間: 2025-3-22 23:33
James K. Whitesell,Mark A. Mintonopment (SCD). The book content examines a diverse range of SCD methods; assessing community needs and resources; creating community visions; promoting stakeholder interest and participation; analyzing community problems; designing and facilitating strategic planning; carrying out interventions to improve978-1-4939-0010-7978-1-4614-5100-6作者: Lobotomy 時(shí)間: 2025-3-23 03:33
James K. Whitesell,Mark A. Mintonopment (SCD). The book content examines a diverse range of SCD methods; assessing community needs and resources; creating community visions; promoting stakeholder interest and participation; analyzing community problems; designing and facilitating strategic planning; carrying out interventions to improve978-1-4939-0010-7978-1-4614-5100-6作者: EXALT 時(shí)間: 2025-3-23 06:19 作者: 削減 時(shí)間: 2025-3-23 11:42 作者: extract 時(shí)間: 2025-3-23 15:21
James K. Whitesell,Mark A. Mintonopment (SCD). The book content examines a diverse range of SCD methods; assessing community needs and resources; creating community visions; promoting stakeholder interest and participation; analyzing community problems; designing and facilitating strategic planning; carrying out interventions to improve978-1-4939-0010-7978-1-4614-5100-6作者: Headstrong 時(shí)間: 2025-3-23 20:53
James K. Whitesell,Mark A. Mintonopment (SCD). The book content examines a diverse range of SCD methods; assessing community needs and resources; creating community visions; promoting stakeholder interest and participation; analyzing community problems; designing and facilitating strategic planning; carrying out interventions to improve978-1-4939-0010-7978-1-4614-5100-6作者: 教唆 時(shí)間: 2025-3-23 22:28
James K. Whitesell,Mark A. Mintonopment (SCD). The book content examines a diverse range of SCD methods; assessing community needs and resources; creating community visions; promoting stakeholder interest and participation; analyzing community problems; designing and facilitating strategic planning; carrying out interventions to improve978-1-4939-0010-7978-1-4614-5100-6作者: Limpid 時(shí)間: 2025-3-24 04:09
s being significantly underutilized. In our own work we have found that 13C spectroscopy is a more powerful tool than IH NMR spectroscopy, especially for probing subtle stereochemical questions in complicated systems. This is especially true in five membered ring compounds where IH NMR is at a parti作者: 分散 時(shí)間: 2025-3-24 09:31
Bicyclo[3.1.1]heptanes,ering of assigned numbers for the atoms adjacent to atom 1. Substituents that are oriented with this sense of rotation are defined as M (mit) while those opposed are G (gegen). For monosubstituted compounds, the numbering system is defined so that the substituent is M.作者: municipality 時(shí)間: 2025-3-24 11:01 作者: installment 時(shí)間: 2025-3-24 18:33 作者: onlooker 時(shí)間: 2025-3-24 19:30
Fundamental Effects on Carbon Shifts,at, in most cases, the total effect on chemical shifts due to the presence of a large number and variety of substituents can be predicted to be the sum of the effects of the individual groups. It is this “substituent additivity” that sets carbon spectroscopy distinctly apart from proton spectroscopy作者: 喃喃而言 時(shí)間: 2025-3-25 00:14
Mono- and Bicyclic Systems,ch ring system has unique features and a relatively simple but “universal” set of Δδ values such as that found in Table 1–1 will be too general to provide accurate predictions for mono- and especially polycyclic systems. It is for this reason that we have gathered the extensive sets of carbon shift 作者: 不要嚴(yán)酷 時(shí)間: 2025-3-25 05:17
Stereochemical Considerations,ic effects are also important in proton spectroscopy, the superposition of both bimolecular and intramolecular interactions makes partitioning of these effects difficult. On the other hand, the chemical shift of carbons (except those bearing polarizable groups such as iodides or carbonyl groups) are作者: incite 時(shí)間: 2025-3-25 11:18 作者: Narrative 時(shí)間: 2025-3-25 12:08
Bicyclo[2.2.1]heptanes,C-7, and syn and anti used for C-7 substituents. For 7-monosubstituted compounds, the numbering is defined so that the substituent will be syn. Relatively unusual dihedral angles are found about most of the bonds and thus caution should be exercised in applying Δδ effects observed here to other syst作者: conjunctiva 時(shí)間: 2025-3-25 18:49
Bicyclo[2.2.2]octanes,htforward system, published elsewhere, that is depicted schematically above. Briefly, a sense of rotation (clockwise or counterclockwise) is defined for an axis that passes through both bridgehead atoms based upon the ordering of assigned numbers for the atoms adjacent to atom 1. Substituents that a作者: MITE 時(shí)間: 2025-3-25 20:42
Bicyclo[3.1.1]heptanes,rientation of groups relative to the unique, smallest bridge. The M/G system defined in Chapter 6 for the bicyclo[2.2.2]octanes is equally applicable here. Briefly, a sense of rotation (clockwise or counterclockwise) is defined for an axis that passes through both bridgehead atoms based upon the ord作者: 效果 時(shí)間: 2025-3-26 02:03
Bicyclo[3.3.1]nonanes and Tricyclo[3.3.1.13,7]decanes,red, three-carbon bridge. Adamantanes, or tricyclo[3.3.1.1.]decanes, can serve as quite useful models for chair cyclohexane rings that have no conformational freedom. For C-2 monosubstituted compounds, the lower numbered ring has the substituent axial while C-7, C-8, and C-10 are anti to the substit作者: 過剩 時(shí)間: 2025-3-26 05:11 作者: 紋章 時(shí)間: 2025-3-26 08:50 作者: nuclear-tests 時(shí)間: 2025-3-26 15:15
Spirocyclics, the bicyclo[2.2.2]octanes where literature schemes were found to be inadequate, we have defined a new system. Quite simply, groups in each ring are defined as M (mit) if they are oriented towards the lower numbered of the two atoms of the other ring immediately adjacent to the junction; otherwise t作者: 協(xié)定 時(shí)間: 2025-3-26 18:18 作者: Peculate 時(shí)間: 2025-3-26 22:05 作者: 艱苦地移動 時(shí)間: 2025-3-27 02:59
Introduction,ower of the technique is far greater than as a replacement for elemental analysis and indeed can be used to solve complicated structural problems more readily than less straightforward methods such as 2-D . H NMR. techniques.作者: 駭人 時(shí)間: 2025-3-27 08:41 作者: 急性 時(shí)間: 2025-3-27 11:49 作者: Ballad 時(shí)間: 2025-3-27 15:30 作者: 乞丐 時(shí)間: 2025-3-27 19:23
Bicyclo[3.1.0]hexanes,The terms exo and endo can be readily used for the cis-fused bicyclo[3.1.0]hexanes.作者: indicate 時(shí)間: 2025-3-28 00:12
Bicyclo[3.2.0]heptanes,The terms exo and endo can be readily used for the cis-fused bicyclo[3.2.0]heptanes (no data for trans-fused compounds was found).作者: 叫喊 時(shí)間: 2025-3-28 06:05 作者: GEAR 時(shí)間: 2025-3-28 09:59 作者: 敘述 時(shí)間: 2025-3-28 12:39
Bicyclo[3.3.0]octanes,Stereochemistry for the cis-fused series in this system is readily specified by exo and endo. While there are two, relatively conformationally mobile rings present, this sytem is especially well behaved in terms of shift additivity. No significant quantity of data was found for trans-fused bicyclo[3.3.0]octanes.作者: 白楊魚 時(shí)間: 2025-3-28 18:02
Bicyclo[4.1.0]heptanes,Simple endo/exo terminology can be applied to the bicyclo[4.1.0]heptanes. No significant amount of data on trans-fused compounds was found.作者: Ganglion-Cyst 時(shí)間: 2025-3-28 22:03
Bicyclo[4.2.0]octanes,As with the bicyclo[3.2.2]nonanes, the problem of nomenclature is avoided here. Because of the scarcity of information, all data can be displayed as three-dimensional representations. Too little information is available to be able to make definitive deductions concerning conformational biases in these systems.作者: Largess 時(shí)間: 2025-3-29 01:27
http://image.papertrans.cn/s/image/877352.jpg作者: Solace 時(shí)間: 2025-3-29 03:36
https://doi.org/10.1007/978-94-009-3161-9nuclear magnetic resonance (NMR); spectroscopy作者: Overdose 時(shí)間: 2025-3-29 10:07
Chapman and Hall Ltd 1987作者: Platelet 時(shí)間: 2025-3-29 13:21
Bicyclo[2.2.1]heptanes,C-7, and syn and anti used for C-7 substituents. For 7-monosubstituted compounds, the numbering is defined so that the substituent will be syn. Relatively unusual dihedral angles are found about most of the bonds and thus caution should be exercised in applying Δδ effects observed here to other systems.作者: 強(qiáng)所 時(shí)間: 2025-3-29 16:34 作者: escalate 時(shí)間: 2025-3-29 21:51 作者: 紡織品 時(shí)間: 2025-3-30 00:37
case studies in sustainable community development.Includes sOrdinary people, community leaders, and even organizations and corporations still do not fully comprehend the interconnected, “big picture” dynamics of sustainability theory and action. In exploring means to become more sustainable, individ作者: inundate 時(shí)間: 2025-3-30 07:04
James K. Whitesell,Mark A. Mintoncase studies in sustainable community development.Includes sOrdinary people, community leaders, and even organizations and corporations still do not fully comprehend the interconnected, “big picture” dynamics of sustainability theory and action. In exploring means to become more sustainable, individ作者: intrude 時(shí)間: 2025-3-30 11:07 作者: cognizant 時(shí)間: 2025-3-30 13:44 作者: 是突襲 時(shí)間: 2025-3-30 17:04 作者: Gastric 時(shí)間: 2025-3-30 21:06
James K. Whitesell,Mark A. Mintoncase studies in sustainable community development.Includes sOrdinary people, community leaders, and even organizations and corporations still do not fully comprehend the interconnected, “big picture” dynamics of sustainability theory and action. In exploring means to become more sustainable, individ作者: Circumscribe 時(shí)間: 2025-3-31 03:20
James K. Whitesell,Mark A. Mintoncase studies in sustainable community development.Includes sOrdinary people, community leaders, and even organizations and corporations still do not fully comprehend the interconnected, “big picture” dynamics of sustainability theory and action. In exploring means to become more sustainable, individ作者: 控訴 時(shí)間: 2025-3-31 08:36 作者: 等級的上升 時(shí)間: 2025-3-31 13:13 作者: chisel 時(shí)間: 2025-3-31 16:22
F. W. T. Penning De Vriesie keine siamesischen Zwillinge (sind)“ (Fraenkel 1932d, 89), mithin also die Weimarer Verfassung zwar unverzichtbare rechtsstaatliche und demokratische Struktur- und Formelemente enthielt, aber darüber hinaus auch organisatorische, rechtliche und institutionelle Normierungen und Regelungen, die wed作者: adjacent 時(shí)間: 2025-3-31 17:53 作者: fluffy 時(shí)間: 2025-3-31 22:21
Teacher Professionalism and Teacher Education in Hong Kong of the key concepts central to the paper. Professionalism/professionalization and one of its key manifestations – the locus of accountability – are concepts which have been extended in a variety of directions and sometimes in ways beyond their core meanings.作者: 擦試不掉 時(shí)間: 2025-4-1 04:45 作者: CHOP 時(shí)間: 2025-4-1 08:10 作者: 可耕種 時(shí)間: 2025-4-1 11:23
Christina V. OlesonA concise, up-to-date approach to the diagnosis, early management and rehabilitation of osteoporosis in a broad context of patients.Provides information on special rehabilitation populations, includin
