Krypton-nitrogen bonds

Schrobilgen published the first structural evidence for this bond type (82), In the intervening time, the majority of new compounds with a xenon-nitrogen bond have resulted from the exploitation of the Lewis acid properties of noble gas cations by Schrobilgen and co-workers (83-88). These workers have further exploited these properties to prepare the first compounds with a krypton-nitrogen bond (87,89). The majority of these new Xe-N and Kr-N compounds are solution species they have been characterized predominately by multinuclear NMR and vibrational spectroscopy and are generally too unstable to be isolated in a pure form. 

Krypton Compounds with Bonds to Oxygen and Nitrogen... 

Another example of crystals containing more than one component is provided by the clathrates. In clathrates of, 3-quinol, three quinol molecules are hydrogen bonded together to form an approximately spherical cavity of radius 4 A (Figure 15.13). Any molecule of appropriate size such as oxygen, nitrogen, krypton, xenon, methane, sulfur dioxide, or methyl alcohol can be trapped, and if it is not disordered within the clathrate, its location and orientation can be determined in the crystalline state by X-ray diffraction methods. In most cases, when a clathrate is... 

A few compounds with bonds to nitrogen are known. Both krypton and xenon have been reported to form a compound of general formula [HC=N-EF ][AsF ], where E = Kr or Xe. The krypton compound detonates violently with a flash of white light. 

In 1988, G. J. Schrobilgen, professor of chemistry at McMaster University in Canada, reported the synthesis of an ionic compound, [HCN F] [AsFs], which consists of HCNKrF and Asp6 ions. In the HCNKTh" " ion, the krypton is covalently bonded to both fluorine and nitrogen. Draw Lewis structures for these ions, and estimate the bond angles. 

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