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Three isomorphous compounds have been prepared, i.e. [CuI(PPh3)2(Hnor)I], [CuI(PPh3)2(Hnor)Cl] and [CuI(PPh3)2(Hnor)Br]. The compounds are tetrahedrally coordinated, as deduced from the single-crystal X-ray diffraction analysis of the iodide compound. The chloride and bromide compounds were found to be isomorphous. Significant twinning hampered a detailed X-ray diffraction study of the bromide derivative...
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