L cation

Alkenes in (alkene)dicarbonyl(T -cyclopentadienyl)iron(l+) cations react with carbon nucleophiles to form new C —C bonds (M. Rosenblum, 1974 A.J. Pearson, 1987). Tricarbon-yi(ri -cycIohexadienyI)iron(l-h) cations, prepared from the T] -l,3-cyclohexadiene complexes by hydride abstraction with tritylium cations, react similarly to give 5-substituted 1,3-cyclo-hexadienes, and neutral tricarbonyl(n -l,3-cyciohexadiene)iron complexes can be coupled with olefins by hydrogen transfer at > 140°C. These reactions proceed regio- and stereospecifically in the successive cyanide addition and spirocyclization at an optically pure N-allyl-N-phenyl-1,3-cyclohexadiene-l-carboxamide iron complex (A.J. Pearson, 1989). 

Use of the oxidation number and charge number extends the range for radicals for example, uranyl(VI) or uranyl(2+) cation UOJ, uranyl(V) or uranyl(l+) cation. 

The diagrams below give STO-3G calculated charge densities for the betu l cation and its a-formyl and a-cyano derivatives. Analyze die effect of these substituents on... 

Cyclopenta[fc]dioxanes (44) are accessible from the reaction of the dioxenylmolybdenum carbene complex (43) with enynes <96JOC159>, whilst an intramolecular and stereoselective cyclisation of (Ti5-dienyl)tricarbonyliron(l+) cations affords chiral frans-2,3-disubstituted 1,4-dioxanes <96JOC1914>. 2,3-Dimethylidene-2,3-dihydro-1,4-benzodioxin is a precursor of the 3,8-dioxa-lff-cyclopropa[i]anthracene, which readily dimerises to dihydrotetraoxaheptacene (45) and the analogous heptaphene <96AJC533>. 

SuGA, S., OKAfIMA, M., Fujiwara, K., Yoshida, J.-L, Cation Plow method ... 

Cu(OMc)4]2 anion is bridged to outer square-pyramidal Cu(L) + cations) and a mononuclear square-pyramidal complex (331c). 

Acyclic (pentadienyl)iron(l-l-) cations present additional possibilities for nucleophilic attack. The transoid form 114t is known to exist in equilibrium with the more thermodynamically stable cisoid form 114c (Scheme 21)118. Depending upon the nucleophile,... 

Gao X, Huang L. Cationic liposome-mediated gene transfer. Gene Ther 1995 2 710. 

Cation-poor aluminosilicates -H DSi -H bicarbonate -l- cations -cation-rich aluminosilicates-H carbon dioxide... 

Colourless bis-chelated silver(l) cations containing (26) have been isolated by the addition of large anions, such as C104, PFe and BPh4. The complexes were univalent electrolytes in solution.214... 

Atwood, J. L., Cation complexation by calixarenes . in Cation Complexation by Macrocycles, Inoue, Y., Gokel, G., eds. Dekker New York, 1991. 

EDTA). In this application the M(OH2)l+ cation that is to be titrated forms a soluble EDTA complex that is appreciably less stable than the HgEDTA complex.141 The mercury electrode is constructed in a form like that of Figure 5.40a or b, and is used in conjunction with a saturated calomel reference electrode. The electrode is immersed in a solution that contains the ion to be titrated [M(OH2) +], and a few drops of 0.01 M HgY2- are added (where Y4-represents the EDTA anion). This establishes the potential of the mercury electrode according to the half-cell reaction... 

Solarek D, Tessler MM, Jobe P, Peek L. Cationic Starch Aldehydes - Wet End Additives for Temporary Wet Strength and Improved Dry Strength. Paper Chemistry Symposium Stockholm, Sweden STFI and SPCI organizers 1988 Sept. 27-290... 

B. Coupling of Carbonylcobaltate(-I) Anions with Carbonylcobalt(l) Cations... 

Yawalata, D. and Paszner, L., Cationic effect in high concentration alcohol organosolv pulping The next generation biorefinery. Holzforschung 2004, 58 (1), 7-13. 

The precentage differences in the radii of the M and L cations with respect to the radius of the M cation are given in Table VII. For the systems which give solid solutions, these numbers are underlined. 

FIGURE 10. Molecular structure of the [GeCl3(L )]+ cation. Reproduced by permission of the Royal Society of Chemistry from Reference 15... 

Correspondingly, objections can be made to making a plot of the values of for the electrolyte against 1/ cation extrapolating to l/ cation = - ight, one... 

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