Diamagnetic solid

AgF3 has recently been characterized [21] as a red diamagnetic solid, isostructural with AuF3 it is best made by adding a fluoroacid (BF3, PF5) to solutions of AgFJ salts in anhydrous HF... 

Sulphur and selenium donor ligands. The reaction between AgNOj and the series of thiocarbazide derivatives RCONHNHC(S)NHNH2 (R == Me, Ph, or C6H4N) has produced white diamagnetic solids for which the polymeric structures (94) are proposed. Support for these structures comes from their low solubility, and i.r. data suggesting terdentate co-ordination via the terminal N, the amido N, and the S atom. The Ag ion attains its usual co-ordination... 

Tetrakis(trifluoroacetato)ditungsten(II) is a bright yellow, diamagnetic solid that is highly air sensitive. It is very soluble in diethyl ether, THF, toluene, and dichloromethane and moderately soluble in hexane. The 84.26 MHz 19F NMR spectrum (in C6D6) consists of a single sharp resonance at 5 — 70.1 versus CFC13(<5 0.0). Other spectroscopic data and physicochemical properties are reported in the literature.17... 

Tetrakis(acetato)ditungsten(II) is a very air-sensitive, bright yellow, diamagnetic solid. It is moderately soluble in THF and acetonitrile but solutions in the latter solvent decompose after several hours. The 360 MHz XH NMR spectrum (in THF-d8) consists of a single methyl resonance at S 2.91. The mass spectrum (solid probe, electron impact, 40-70-eV ionizing voltage) shows the parent ion multiplet at m/e 604. Other spectroscopic data and physicochemical properties are described in the literature.8... 

The absolute chemical shifts of protons in diamagnetic solids are typically near 30 ppm (28), and the Knight shift caused by conduction electrons through contact interaction is estimated to be —31.2 ppm, using the experimental T1T value of 180 JK-sec and the Korringa relation (29) ... 

The products of the reactions between silver(I) carboxylates and triphenylphosphine were colourless, diamagnetic solids, stable at room temperature to oxygen and not significantly light sensitive. Reaction with triphenylphosphine was also found useful as a method of solubilizing silver carboxylates. 

The addition of BF3, PF5, or AsF5 to AgF4 salts gives AgF3 as a red, diamagnetic solid ... 

KAgF4 is a yellow diamagnetic solid. It is stable in thoroughly dried nickel, Teflon, FEP or glass vessels. With traces of moisture it immediately turns brown. It is quite soluble in aHF (about 5 mmol per ml aHF). The concentrated solution in aHF is dark yellow orange. 

Xe2Fn)2NiF6 [45] is a red diamagnetic solid which loses XeF6 slowly at room temperature in dynamic vacuum to form (XeF5)2NiF6 [46],... 

Fig. 2.25. (a) Magnetization of K-(ET)2l3 vs magnetic field applied perpendicular to the ET planes for different temperatures, (b) Temperature dependence of Bci obtained from the points where the magnetization curves (a) first deviate from ideal diamagnetism (solid line in (a))... 

Bromine trifluoride under reflux, dissolved the tetrafluoride to give a deep red solution. The red-brown solid which remained after vacuum distillation of the bromine trifluoride was the 2 1 bromine trifluoride-platinum tetrafluoride adduct [Found F, 35-1 Pt, 36-7. Calc, for (BrFj)2PtF4 F, 34-9 Pt, 34-9%]. The diamagnetic solid melted with some decomposition at 136°. Its X-ray powder pattern was complex and no attempt was made to index it. Iodine pentafluoride neither dissolved nor reacted with the tetrafluoride even on prolonged refluxing at 100°. Chlorine trifluoride, passed over the tetrafluoride at 300°, converted it into a yellow solid, m. p. 170°, of which the X-ray powder pattern was identical with that of the chlorine trifluoride-platinum pentafluoride adduct. ... 

Addition of AsFs gas to a yellow solution of XeFsAgF4 (ref. 7) in AHF at 20 °C quantitatively precipitated AgF i as a bright red diamagnetic solid. A-Ray powder photographs closely resemble those of AuFj (ref. 8) and the pattern was indexed on the basis of a hexagonal unit cell flo = 5.088(10) Co... 

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