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Other Groups

While we worked in Lyngby, others had not been idle. Not unexpected, the other groups used either Boyd s program or ours. [Pg.46]

A Slovak group uses Boyd s progreim in DeHayes version to analyse strain in the rings of the enta (or EDTA) complex of Co(III). [Pg.46]

Their parameter set is made up from many different sources- [Pg.46]

Find the rotation axis with the highest n, the highest order C axis for the molecule. This is the principal axis of the molecule. [Pg.86]

Does the molecule have any C2 axes perpendicular to the C axis  [Pg.86]

Molecules with C2 axes perpendicular Molecules with no perpendicular C2 [Pg.87]

No final assignments of point groups have been made, but the molecules have now been divided into two major categories, the D set and the C or 5 set. [Pg.87]

A review of transition metal SO2 complexes contains a section on SO2 insertion reactions. The insertion of Se02 and Te02 into the Mo—R bond, equation (49), has been accomplished by activation of Se02 and Te02 in a metal evaporator and condensation in an ether matrix at [Pg.268]

Migratory insertion of NO is not a common reaction, possibly because [Pg.268]

Insertion of sulfur into a metal-carbene bond is shown in equation (51). The initial step is postulated to be attack of the isothiocyanate [Pg.270]

Metal-Alkyl Bond Formation and Fission Oxidative Addition and Reductive Elimination [Pg.271]

The eighteen months under review has produced many interesting papers both on the metal-alkyl bond, and on oxidative addition and reductive elimination. Space available has forced selection, so that in choosing papers for comment priority has been given to those which present genuine evidence for the mechanism of reaction for a particular process or which measure useful rates especially if activation parameters are also determined. Relevant work on equilibrium constants, enthalpies of reaction, and bond dissociation energies has also been included. [Pg.271]


We are particularly concerned with isomorphisms and homomorphisms, in which one of the groups mvolved is a matrix group. In this circumstance the matrix group is said to be a repre.sentation of the other group. The elements of a matrix group are square matrices, all of the same dimension. The successive application of two... [Pg.148]

It would appear that identical particle pemuitation groups are not of help in providing distinguishing syimnetry labels on molecular energy levels as are the other groups we have considered. However, they do provide very usefiil restrictions on the way we can build up the complete molecular wavefiinction from basis fiinctions. Molecular wavefiinctions are usually built up from basis fiinctions that are products of electronic and nuclear parts. Each of these parts is fiirther built up from products of separate uncoupled coordinate (or orbital) and spin basis fiinctions. Wlien we combine these separate fiinctions, the final overall product states must confonn to the pemuitation syimnetry mles that we stated above. This leads to restrictions in the way that we can combine the uncoupled basis fiinctions. [Pg.173]

In Group III, boron, having no available d orbitals, is unable to fill its outer quantum level above eight and hence has a maximum covalency of 4. Other Group 111 elements, however, are able to form more than four covalent bonds, the number depending partly on the nature of the attached atoms or groups. [Pg.42]

Other Group II halides are essentially ionic and therefore have relatively high m.p., the melts acting as conductors, and they are soluble in water but not in organic solvents. [Pg.128]

The data in Table 7.1 show that, as expected, density, ionic radius, and atomic radius increase with increasing atomic number. However, we should also note the marked differences in m.p. and liquid range of boron compared with the other Group III elements here we have the first indication of the very large difference in properties between boron and the other elements in the group. Boron is in fact a non-metal, whilst the remaining elements are metals with closely related properties. [Pg.138]

Nitrogen does form a number of binary compounds with the halogens but none of these can be prepared by the direct combination of the elements and they are dealt with below (p. 249). The other Group V elements all form halides by direct combination. [Pg.213]

Ammonia is a colourless gas at room temperature and atmospheric pressure with a characteristic pungent smell. It is easily liquefied either by cooling (b.p. 240 K) or under a pressure of 8-9 atmospheres at ordinary temperature. Some of its physical and many of its chemical properties are best understood in terms of its structure. Like the other group head elements, nitrogen has no d orbitals available for bond formation and it is limited to a maximum of four single bonds. Ammonia has a basic tetrahedral arrangement with a lone pair occupying one position ... [Pg.216]

Bismuth forms both -l-3 and -l-5 oxides. The -1-3 oxide, unlike the corresponding oxides of the other Group V elements, is insoluble... [Pg.237]

Chromium forms a white solid, hexacarhonyl, Cr(CO)j, with the chromium in formal oxidation state 0 the structure is octahedral, and if each CO molecule donates two electrons, the chromium attains the noble gas structure. Many complexes are known where one or more of the carbon monoxide ligands are replaced by other groups of ions, for example [CrfCOlsI] . [Pg.383]

This method is used more particularly for hydroxy-compounds which also contain other groups (such as Cl atoms, etc,) which might be affected by the sodium hydroxide used in the following method. [Pg.218]

Some of the integral or differential constitutive equations presented in this and the previous section have an exact equivalent in the other group. There are, however, equations in both groups that have no equivalent in the other category. [Pg.14]

CHjO), + 3CH,OH + 3HC1 —> 3CH3OCH2CI + 3H,0 Monoalkyl benzene derivatives yield para chloromethjd compounds, frequently accompanied by small amounts of the ortho isomeride. The reaction is similar in some respects to that of Friedel and Crafts. Chloromethylation is of great value in synthetic work as the —CH,C1 group can be converted into other groups such as —CH,OH, —CHO, —CH,OR, —CH,CN, —CH,CH(COOC.,Hs)2 and —CH,. [Pg.534]

By the oxidation of a side chain, provided the molecule contains no other groups (e.g., amino NH, and hydroxyl OH) which are affected by oxidising agents, for example ... [Pg.751]

Approximate values relative to tetramethylsilane other groups within the molecule can cause a proton signal to appear outside of the range cited... [Pg.528]

Before we describe the applications of organometallic reagents to organic synthesis let us examine their preparation Organolithium compounds and other Group I organometal he compounds are prepared by the reaction of an alkyl halide with the appropriate metal... [Pg.589]


See other pages where Other Groups is mentioned: [Pg.56]    [Pg.193]    [Pg.225]    [Pg.307]    [Pg.404]    [Pg.1960]    [Pg.2224]    [Pg.31]    [Pg.131]    [Pg.135]    [Pg.139]    [Pg.189]    [Pg.196]    [Pg.207]    [Pg.207]    [Pg.259]    [Pg.186]    [Pg.435]    [Pg.174]    [Pg.192]    [Pg.352]    [Pg.496]    [Pg.497]    [Pg.268]    [Pg.607]    [Pg.705]    [Pg.882]    [Pg.1071]    [Pg.165]    [Pg.167]    [Pg.415]    [Pg.143]    [Pg.1284]    [Pg.268]    [Pg.5]    [Pg.1065]   


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Acetylcholine other groups

Acids with Other Functional Groups

Aldehydes or Ketones with Other Functional Groups

Aldehydes with other functional groups

Alkanolamides and other amide-group containing nonionics

Amines, Nitriles, and other Nitrogen-containing Functional Groups

Aromatic Nitro Compounds with Other Functional Groups

Aryl groups other reactions

BPh and other prosthetic groups

Bacteria with other phospholipid head groups

Blood Group Substances from Other Sources

By Other Group 8-10 Metal Catalysts

Complexes of Other Group 13 Elements

Compounds Containing Other Functional Groups

Connection of quasispin method with other group-theoretical methods

Contributions of Other Research Groups

Cyclopentadienyl Compounds Containing Other Groups

Cyclopropanes with other reactive groups

Derivatives of other Main-Group Elements

Displacement of other groups

Effects of Thiols and Other Sulfur-Containing Groups

Enium Ions of Other Group 14 Elements

Enolates of Other Main Group Metals

Epoxidation in the Presence of Other Oxidizable Functional Groups

Extender Groups other than Malonate

From Benzenoid Derivatives by Displacement of Nitro,Chloro and other Groups

From Other Carbonyl-Containing Compounds with Perfluoroalkyl Groups

From other Functional Groups

Functional Groups other than Acetylenes, Alkanes, Allenes and Olefins

Functional Groups other than Acetylenes, Allenes, and Olefins

High-temperature polymers linear with p-phenylene groups and other

Homology Groups with Other Coefficients

Hydrides of the Other Group 13 Metals Preliminaries and Prospects

Hydrocarbons compared with other group 14 hydrides

Hydrogen Abstraction by Groups Other Than the Carbonyl

Hydrogen Bonding and Other Group Binding Sites

Hydrogenation of Carbonyl and Other Functional Groups

Hydrogenation of Cyclopropanes Having Other Unsaturated Groups

Hydrogenation of Other Functional Groups

Hydrogenation of Other Heteroatom Functional Groups

Inductive effects of other groups

Initiated by Metals other than Group

Introduction of other functional groups

Involving Other Internal or External Functional Groups

Iron-sulfur proteins with other prosthetic groups

Ketones with other functional groups

Linear polymers with p-phenylene groups and other ring structures

Migration of Groups or Atoms Other than

Neighboring Group Participation by Other Functional Groups

No other coordinating groups

Nucleophilic substitution of other groups

OTHER HYDRIDES OF GROUP V ELEMENTS

Organosulfur Compounds with Other Functional Groups

Other Asteraceae Groups

Other Cations of Group 6-12 Elements

Other Chemistry of the Group 13 (IIIA) Elements

Other Chemistry of the Group 13 Elements

Other Common Groups with a Single Fluorine Substituent

Other Compounds with Potential Hydroxyl Groups

Other Electrophilic Functional Groups on Aliphatic Compounds

Other Functional-group Latices

Other Group 13 Elements

Other Group Donors

Other Group IIA carbonates

Other Group V Donor Complexes

Other Group VA Donor Ligands

Other Group-IA Organometallics of the Same Metal

Other Group-IIA Organometallics of the Same Metal

Other Group-IIB Organometallics of the Same Metal

Other Ionic Group 12 Metal Amido Salts

Other Leaving Groups

Other Main Group Elements

Other Metal Complexes of Tertiary Phosphines and Arsines Containing one Olefinic Group

Other Metal Compounds with Bridging Alkyl Groups

Other Modification Reactions Involving Group Transfer

Other Nitrogen Functions Leading to the Formation of Amino Groups

Other Nitrogen-containing Groups

Other Organic Polymers with Metallocene-containing Side Groups

Other Platinum Group Metals

Other Self-Help Groups

Other Substituted Alkyl Groups

Other Subunits without Prosthetic Groups

Other Thermoplastics Containing p-Phenylene Groups

Other Types of Protecting Group

Other alt-copolymers containing ether groups in the backbone

Other aromatic polymers containing p-phenylene groups

Other functional groups

Other homoleptic derivatives of hypervalent Group 15 elements

Other point groups

Other polymers with phenylene groups in the backbone

Other reactions of the carboxyl group

Oxides of Other Groups

Parathion and other pesticides with nitro groups

Phosphorus and Other Group VB Elements

Poly groups with other

Polyacetal with other functional group

Polymers Containing Other Functional Groups

Presence of Amino and Other Groups

Properties of Other Main Group Elements

Protection using other protecting groups

Protective Groups Cleavable by Nucleophiles or Other Reagents

Radical Additions to Other Unsaturated Groups

Reactions Involving Other Functional Groups

Reactions at Hydroxy, Oxo, and Other Oxygen-linked Groups

Reactions at Other Carbon-linked Groups

Reactions with Other Functional Groups

Reduction of Carbonyl and Other Functional Groups

Reduction of Other Functional Groups

Reduction of Other Functional Groups by Hydride Donors

Replacement of Halogeno Substituents by Other Groups

Replacement of other elements by sulfur groups

Replacement of y-carboxyl by other acidic groups

Reversible Addition Reactions to Other Groups

Ring and Other Group Vibrations

Selective Hydrogenations in the Presence of Other Functional Groups

Selective Oxidative Cleavages at Other Functional Groups

Starter Groups Other Than Acetate

Substitution of Groups Other Than Hydrogen

Syntheses by Other Groups

THE OTHER GROUP 4A ELEMENTS Si, Ge, Sn, AND Pb

THE OTHER GROUP 5A ELEMENTS P, As, Sb, AND Bi

THF Oligomers with other than OH End-Groups

The methyl group and other nonpolar substituents

Triosmium Clusters with Group IV Elements Other than Carbon

Vibrations of Methyl Groups Attached to Elements other than Carbon

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