The crystal structure of formamidoxime

Poly(amidoxime) from Polymer-Grafted Khaya Cellulose: An Excellent Medium for the Removal of Transition Metal Cations from Aqueous Solution

“…Grafting of acrylic monomers with starch or cellulose has been reported where the mechanism of grafting is free radical initiation reactions (Hall and Llewellyn 1956;Agrawal 1979). Recently, an alternative reaction pathway of cellulose units, with primarily -OH groups, has been proposed (O'Connell et al 2006).…”

Neutron diffraction at 16 K and ab initio molecular-orbital studies of the structure of formamide oxime

“…The crystal structure of formamide oxime, N-hydroxymethanimidamide, iso-uretin, HON.CH.NH2, was determined by Hall & Llewellyn (1956) and refined by Hall (1965) using X-ray diffraction room-temperature data. This neutron diffraction refinement at 16 K has been carried out to provide more precise molecular structure data.…”

U,l-4a,5,6,7,8,8a-Hexahydro-4-phenyl-8a-(trimethylsiloxy)-4H-1,2-benzoxazine 2-oxide

“…The N2-O2 distance is slightly longer than distances observed in the nitrate ion (1.218-1.268 A) (Grison, Eriks & deVries, 1950;Sass, Vidale & Donohue, 1957;Hamilton, 1957) or in XNO2 species (1.202-1.23 ,/k), X=F, C1 (Clayton, Williams & Weatherly, 1959;Smith & Magnusson, 1952) which suggests slightly less than an N--O double bond. The C3-N2 distance is marginally less than double-bond distances in formamidoxime (Hall & Llewellyn, 1956) and just larger than the Pauling value of 1.287 A (Pauling, 1960). There is some conjugation to C3-C4 ..,o reflected in the slightly shortened C3-C4 distance of 1.492 (4) ,/k compared to the single-bond value above.…”