4,4-Diacetylheptanedinitrile
نویسندگان
چکیده
The asymmetric unit of the title compound, C(11)H(14)N(2)O(2), contains one half-mol-ecule as the central C atom of the mol-ecule lies on a twofold rotation axis. In the crystal structure, weak inter-molecular C-H⋯N hydrogen bonds link the mol-ecules into zigzag chains along c.
منابع مشابه
Sensitization and cross‐reactivity patterns of contact allergy to diisocyanates and corresponding amines: investigation of diphenylmethane‐4,4′‐diisocyanate, diphenylmethane‐4,4′‐diamine, dicyclohexylmethane‐4,4′‐diisocyanate, and dicylohexylmethane‐4,4′‐diamine
BACKGROUND Isocyanates are used in polyurethane production. Dermal exposure to isocyanates can induce contact allergy. The most common isocyanate is diphenylmethane diisocyanate used for industrial purposes. The isomer diphenylmethane-4,4'-diisocyanate (4,4'-MDI) is used in patch testing. Diphenylmethane-4,4'-diamine (4,4'-MDA) is its corresponding amine. Concurrent reactions to 4,4'-MDI and 4,...
متن کاملCatalytic Epoxidation of Olefins by Nanolayered Polyoxomolybdate [4,4´-H2bipy][Mo7O22].(H2O)
A two-dimensional nanolayered polyoxomolybdate, [4,4´-H2bipy] [Mo7O22].H2O (1), where 4,4´-bipy = 4,4´-bipyridine, was prepared and characterized by FT-IR and atomic absorption spectroscopies, transmission electron microscopy (TEM), X-ray single crystal and powder diffraction (XRD), and thermogravimetric analysis. The catalytic performance of 1 was assessed in the epoxidation of some olefins em...
متن کاملSonochemical synthesis and characterization of a nano-sized Manganese (II) coordination polymer, [{Mn(NCS)2(4,4´-bipy)(H2O)2}(4,4´-bipy)]n; with 4,4'-Bipyridine (4,4'-bipy) ligand
A novel nano – sized manganese (II) coordination polymer, [{Mn(NCS)2(L)(H2O)2}(L)]n , (1) (L- = 4,4'-Bipyridine), have been synthesized by a sonochemical process and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), IR spectroscopy and elemental analysis. Direct calcination of the single crystals and nano-size...
متن کاملSonochemical synthesis and characterization of a nano-sized Manganese (II) coordination polymer, [{Mn(NCS)2(4,4´-bipy)(H2O)2}(4,4´-bipy)]n; with 4,4'-Bipyridine (4,4'-bipy) ligand
A novel nano – sized manganese (II) coordination polymer, [{Mn(NCS)2(L)(H2O)2}(L)]n , (1) (L- = 4,4'-Bipyridine), have been synthesized by a sonochemical process and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), IR spectroscopy and elemental analysis. Direct calcination of the single crystals and nano-size...
متن کاملThe outcome of 9 years of consecutive patch testing with 4,4'-diaminodiphenylmethane and 4,4'-diphenylmethane diisocyanate.
BACKGROUND Two outbreaks of allergic contact dermatitis caused by isocyanates at two companies in southern Sweden initiated a research project focusing on contact allergy to isocyanates. Within the project, there was an interest in determining how often contact allergy to the most common isocyanate, diphenylmethane-4,4'-diisocyanate (4,4'-MDI), occurred. OBJECTIVES To determine and compare th...
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عنوان ژورنال:
دوره 65 شماره
صفحات -
تاریخ انتشار 2008