Molybdenum, diiodo

Thus far, the reactions of the diiodo-complexes [MI2(CO)3(NCMe)2] with alkynes have been described. In this section the reactions of other seven-coordinate molybdenum(II) and tungsten(II) halocarbonyls with alkynes are described. 

Ptl2N2C6H,4, Platinum(II), (rran5-(/ ,W)-l,2-cycIohexanediamine]diiodo-, 27 284 PtMo2N2O6C3 H20, Molybdenum, [bis(benzonitrile)platinum]hexa-carbonylbis(T - -cyclopentadienyl)di-, (2Mo—Pl), 26 345... 

Diiodo tris(3,5-dimethylpyrazolyl)hydroborato molybdenum(III) is an air-stable, black, crystalline solid that dissolves in chloroform, dichloromethane, and toluene, but is only slightly soluble in hexane. It reacts with alcohols (see below), and is best stored for prolonged periods under dry nitrogen. The infrared spectrum (KBr disc) shows vNO 1700 cm-1 and vBH 2555 cm-1, and the 220 MHz H nmr spectrum in CDC13 shows signals attributable to the pyrazolyl protons at = 6.09 (area 1) and 5.86 (area 2), the phenyl protons at = 7.13, 7.27 (area 5), and the pyrazolyl methyl protons at = 2.77 (area 3), 2.58 (area 3), 2.29 (area 6), and 2.19 (area 6). 

Pt 2N2CgH 4, Platinum ), [mins- /J,/JFl,2-cyclohexanediamine]diiodo-, 27 284 PtMo2N2OjC3 H20, Molybdenum. 

Hj, Hydrogen, molybdenum complex, 27 3 tungsten complex, 27 6 H2BF4l2lrC4jH34, lridium(l +X (1,2-diiodo-benzene) dihydridobis(triphenyl-phosphine)-, tetrafluoroboiate(l—X 26 125, 28 59... 

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