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Range complexity

At long range, complex interactions having their origin in quantum mechanics are negligible, and molecular interactions can be described by classical electrostatics of nuclei and electron density. [Pg.95]

In the UV spectral range complexation with 18-crown-6 causes a hypsochromic shift of the band with the longest wavelength in various solvents (Bartsch et al., 1976 Hashida and Matsui 1980). Gokel and Cram (1973) reported that complexation with binaphtho-20-crown-6 (11.2) produces a yellow to red color. This phenomenon is very likely to be due to a charge-transfer band between a naphthalene ring as donor (7i-base) and the arenediazonium ion as acceptor (7i-acid). [Pg.296]

Figure 5. Reaction probabilities vs. impact parameter for frei = 0.5 kcal/mol and Trot = 300 K. Part (a) is for nc-cib = 0. The solid lines are for FVib = 0 and the dotted lines are for Fvib = zpe. The squares are for total complex formation and the triangles for long-range complex formation. Part (b) is for nc-clh = 6 and fVib = 0 with ( , —) for total complex formation, (a, —) for long-range complex formation, and (o, ) for attaining the central barrier with one or no ITP (from ref. 38). Figure 5. Reaction probabilities vs. impact parameter for frei = 0.5 kcal/mol and Trot = 300 K. Part (a) is for nc-cib = 0. The solid lines are for FVib = 0 and the dotted lines are for Fvib = zpe. The squares are for total complex formation and the triangles for long-range complex formation. Part (b) is for nc-clh = 6 and fVib = 0 with ( , —) for total complex formation, (a, —) for long-range complex formation, and (o, ) for attaining the central barrier with one or no ITP (from ref. 38).
Dual- Orifice 20-200 A variety of aircraft and industrial gas turbines Good atomization, Turndown ratio 50 1, Relatively constant spray angle Poor atomization in transition range, Complexity in design, Susceptibility of small passages to blockage... [Pg.23]

AFLC Test Range Complex, UT 7.8 1.4 27 53 20 Clay loam... [Pg.168]

With the approach using isothermal thermograms, the different thermograms must be checked for consistency. In certain cases when the peaks are well separated, as for consecutive reactions, they may be treated individually and the heat release rates can be extrapolated separately, and used for the TMRai calculation. The reaction that is active at lower temperature will raise the temperature to a certain level where the second becomes active, and so on. So under adiabatic conditions, one reaction triggers the next as in a chain reaction. In certain cases, in particular for the assessment of stability at storage, it is recommended to use a more sensitive calorimetric method as, for example, Calvet calorimetry or the Thermal Activity Monitor (see Section 4.3), to determine heat release rates at lower temperatures and thus to allow a reliable extrapolation over a large temperature range. Complex reactions can also easily be handled with the iso-conversional method, as mentioned below. [Pg.296]

With intermediate oxidation states more complex amphoteric and polymeric behaviour is observed. Thus V(V) forms hydrated V02+ in acid solution below pH 2, and the anionic species V043- at high pH. Over an intermediate pH range complex polyvaxadates are formed. The most important is decavanadate ion [Vi0O28]6- (normally present in protonated forms). [Pg.88]

Technique Optimal divergence range Complexity Cost Time and labor Nature of samples Comparability... [Pg.6]

The spreadsheet (Fig. 47.1) is divided into rows (identified by numbers) and columns (identified by alphabetic characters). Each individual combination of column and row forms a cell which can contain a data item, a formula, or a piece of text called a label. Formulae can include scientific and/or statistical functions and/or a reference to other cells or groups of cells (often called a range). Complex systems of data input and analysis can be constructed (models). The analysis, in part or complete, can be printed out. New data can be added at any time and the sheet recalculated. You can construct templates, pre-designed spreadsheets containing the formulae required for repeated data analyses. [Pg.307]

The palladium II)-promoted hydrolysis of methyl glycylglycinate and isopropyl glycylglycinate has been investigated over a temperature range. Complexes of type (22) are formed in which the amino, deprotonated amide and alkoxycarbonyl groups act as donors. Hydrolysis by both H2O and OH ion is observed. Base hydrolysis of the coordinated peptide esters is ca. 10 -fold... [Pg.424]

Large polyazacycloalkanes produce highly charged protonated species in the neutral pH range. Complexation of such large polyazacycloalkanes as... [Pg.14]

Thus, reaction Path A is allowed on the A surface coming from the X E state of the long-range complex SiNH. The ground state ofSiNHj, the only reachable product according to thermochemistry, can then be produced this way in interstellar conditions. [Pg.288]

It said the Pentagon reported 10,444 operational ranges covering 24.6 million acres nationally in a 2003 inventory. But a 2004 inventory listed 353 range complexes and 172 individual ranges on 26 million acres worldwide. [Pg.293]

The data are consistent with an I4, mechanism for ligand substitution. The complex [Fe(cat)]+ undergoes a subsequent slow electron-transfer reaction. Under conditions of higher hydrogen-ion concentration, however, 1.0>[H+]>0.1 mol 1, the redox process may be studied using the stopped-flow method. In this acidity range, complex formation (I) is effectively suppressed and the mechanism proposed involves the intermediacy of semiquinone radicals,... [Pg.41]

V-V bonding range. Complex 11 on reaction with ethylene under atmospheric pressure at room temperature generated dinudear mixed-valence V(11)/V(II1) trihydride derivative [ (Me3Si)N=P(Ph)2C(H)P(Ph)j=N(SiMe3) V]2(H)(p-H)3(p,tiiniCCHCHPh), 12. The molecular connectivity was elucidated by an X-ray crystal structure [102]. [Pg.96]


See other pages where Range complexity is mentioned: [Pg.39]    [Pg.147]    [Pg.147]    [Pg.148]    [Pg.352]    [Pg.536]    [Pg.165]    [Pg.169]    [Pg.339]    [Pg.456]    [Pg.39]    [Pg.80]    [Pg.952]    [Pg.759]    [Pg.470]    [Pg.283]    [Pg.285]    [Pg.218]    [Pg.317]    [Pg.289]    [Pg.264]    [Pg.952]    [Pg.367]    [Pg.220]    [Pg.3962]    [Pg.289]    [Pg.210]    [Pg.263]    [Pg.268]    [Pg.162]    [Pg.246]    [Pg.552]   
See also in sourсe #XX -- [ Pg.162 , Pg.168 ]




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Complex long-range electron transfer

Host-guest complexes with a range of different structures

Long range ordered state complex

Molybdenum complexes chemical shift ranges

Osmium complexes range

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