Complexes of the type

Arylthiazoles derivatives are good subjects for the study of these transfers. Thus the absorption wavelengths and the enthalpies of formation of a series of charge-transfer complexes of the type arylthiazole-TCNE, have been determined (147). The results are given in Table IIM3. 

Sodium Hypochlorite—Trisodium Phosphate Complex. Commercial crystalline trisodium phosphate (TSP) is a complex of the type (Na PO -xH20) NaY where n = 4 to 7, a = 11 or 12, and Y is a monovalent anion (see Phosphoric acids and phosphates). Chlorinated trisodium... 

The parent ligand forms complexes of the type [M(CO)5(HNSO)][AsF6] (M = Mn, Re) (Eq. 9.11). ° The rhenium complex can also be prepared by nucleophilic displacement of F from coordinated NSF using MesSnOH as the source of... 

The incorporation of S-N chains between metal centres by the use of heteroaryl substituents in complexes of the type 14.7 has been proposed as a way to generate new materials that may function as molecular wires. However, the synthesis of thiazyl chains bearing metal-binding sites has yet to be achieved. 

The intramolecular Se N interactions in complexes of the type 15.5 result in a downfield shift in the Se NMR resonances the magnitude of this shift corresponds approximately to the strength of the interaction. ... 

Magnesium forms few halide complexes of the type MX4 , though [NEt4]2[MgCl4] has been reported examples of for the heavier... 

Complexes of the type [GaH2X(NMe3) and [GaHX2(NMe3)] are readily prepared by reaction of HCl or HBr on the GaH3 complex at low temperatures or by reactions of the type... 

Numerous solid complexes have been crystallized from brown solutions of iodine and extensive X-ray structural data are available. Complexes of the type L—>-I-X and L—>-I-X-t—L... 

Four-coordinate complexes provide good examples of the early use of preparative methods for establishing stereochemistry. For complexes of the type [Ma2b2], where a and b are unidentate ligands, a tetrahedral structure cannot produce isomerism whereas a planar structure leads to cis and trans isomers (see below). The preparation of 2 isomers of [PtCl2(NH3)2], for instance, was taken as good evidence for their planarity. ... 

Treatment of cycloheptatriene complexes of the type [M(tj -C7H8)(CO)3] (M = Cr, Mo, W) with Ph3C" "BF4 results in hydride abstraction to give orange-coloured tj -cycloheptatrienyl (or tropy-lium) complexes ... 

M(SCH2CH2S)3] with stereochemistry midway between octahedral and trigonal-prismatic, are known for both Nb and Ta. The pentahalides of these two metals act as Lewis acids and form complexes of the type MX5L with O, S, N, P. and As donor ligands. 

In contradistinction to this, weak ferromagnetism has been observed in a number of chloro and bromo complexes of the type M2[CrX4] (M = a variety of protonated amines and alkali metal cations, X = Cl, Br), which are analogous to previously known copper(II) complexes (p. 1192). They have magnetic moments at room temperature in the region of 6BM (compared... 

Fluorination of NiCl2 -t- KCl produces red K2NiFe which is strongly oxidizing and will liberate O2 from water. Dark red complexes of the type [Ni (L)](C104)2 (H2L is a sexidentate oxime) have been obtained by the action of cone HNO3 on [Ni (H2L)](C104)2 and are stable indefinitely under vacuum but are reduced in moist air. 

Coordination by halide ions is rather weak, that of especially so, but from non-aqueous solutions it is possible to isolate anionic complexes of the type [LnXg]. These are apparently, and unusually for Ln , 6-coordinate and octahedral. The heavier donor atoms S, Se, and As form only a few... 

Azaferrocene reacts with aromatic hydrocarbons in the presence of aluminium chloride, giving rise to the cationic complexes of the type (Ti -arene)(Ti -cyclopenta-dienyl)iron(l+) isolated as BF4 salts [87JOM(333)71]. The complex 28 is obtained by reaction of the sulfane compound [Cp(SMc2)3Fe]BF4 with pentamethyl-pyrrole [88AG(E)579 88AG(E)1468 90ICA(170)155]. The metallic site in this center reveals expressed Lewis acidity (89CB1891). 

A number of papers are devoted to the reaction ability of the W(CO)5 a complexes of the type 146 [86P1413 87AG(E)275 88CRV429 880M1796 ... 

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