Air-sensitive compounds

AH of the [Fe(CN)3] salts maybe considered salts of ferrocyanic acid or tetrahydrogen hexakiscyanoferrate [1712647-5], H4[Fe(CN)3], a strongly acidic, air-sensitive compound. It is soluble in water and alcohol but is insoluble in ether. It can be prepared by precipitation of an etherate by adding ether to a solution of [Fe(CN)3] that was acidified with concentrated sulfuric acid. Removal of the ether of solvation affords a white powder which is stable when dry but slowly turns blue in moist air because of Pmssian Blue formation. 

Lithium imides (imidolithiums) are air-sensitive compounds of general formula... 

D. F. ShrIvek. The Manipulation of Air-Sensitive Compounds, McGraw-Hill Book Company, New York 1969. H. C. Brown. Organic Syntheses Via Boranes, John Wiley Sons, Inc./lntcrscience Publishers, Inc., New York... 

The V(IIIj containing complexes V(R2magnetic moments of these air-sensitive compounds are characteristic of two unpaired electrons as is expected for a configuration, the coordination geometry is assumed to be a distorted octahedron (Dj). 

Stannene 1 was found to be an extremely air-sensitive compound, which was identified only by its trapping reactions.99 Replacement of the bis(tri-methylsilyl)methyl groups with the bulky aromatic group 2,4,6-triisopropylphenyl led to the isolation of the stable stannene 2 as its diethyl ether... 

Shriver, D. F. "The Manipulation of Air-sensitive Compounds McGraw-Hill New York, 1969. The high vacuum stopcock is available from J. Young Scientific Glassware Ltd. (11 Colville Road, Acton, London W3 8 BS, UK). 

The calculations also bring to light a significant U ( = ) interaction between the metal center and the C=C bond of the endo dithiolene ligand in the U(V) anionic complex, which does not exist in the dianionic species. Again, magnetic properties of these air-sensitive compounds were not investigated. 

Processing of samples and SPE cartridges in a completely enclosed system, allowing protection for light- and air-sensitive compounds and preventing of exposure of operator to solvents... 

M. E. Minas da Piedade, A. R. Dias, J. A. Martinho Simoes. Filling Ampules with Air-Sensitive Compounds without a Glove Box. J Chem. Educ. 1991, 68, 261. 

Techniques for handling air-sensitive compounds are discussed in Brown, H. 

This extremely air-sensitive compound, which is valence isoelectronic to an olefin, has been structurally characterized by X-ray diffraction. It has a short carbon-phosphorus double bond (1.62 A) the phosphorus and carbon atoms adopt a trigonal planar geometry with a dihedral angle of 60° (Fig. 3). This value is significantly larger than that reported for the most crowded olefin.61 Formally, this compound can be viewed as the product of a car-bene-carbenoid coupling between bis(trimethylsilyl)carbene and bis(diiso-propylamino)phosphenium triflate. Note that another route to methylene-phosphonium salt has been reported by Griitzmacher et al.62... 

Techniques for handling air-sensitive compounds are reviewed in Brown, H. C. Kramer, G. W. Levy, A. B. Midland, M. M. "Organic Syntheses via Boranes" Wiley New York, 1975 Technical data on air-sensitive compounds is also available in Lane, C. F. Kramer, G. W. Aldrichemica Acta 1977, 10, 11-16. 

Spots from thin-layer chromatography (TLC) plates may often be used directly in the mass spectrometer without eluting thus for air-sensitive compounds, when TLC is done in a glove box, a concentric tube may be directly loaded with the unknown plus support the concentric tube is recommended because it minimizes loss of silica gel into the ion source. 

Shriver DF, Drezdzon MA (1986) The Manipulation of Air-Sensitive Compounds. Wiley, New York... 

T -2,6,10-dodecatriene-l,12-diyl)nickel is an air-sensitive compound with a melting point of 15-16° the literature value is 1°. Although the melting point of this product found by the present authors is considerably higher than reported in Reference 2 it was reproducible from run to run. However, the mass and NMR1 spectra accorded well with the literature and it seems possible that a variation of isomer distribution, as discussed in Reference 2, accounts for the difference. 

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