ChemInform Abstract: THE MOLYBDENUM-MOLYBDENUM TRIPLE BOND. 2. HEXAKIS(ALKOXY)DIMOLYBDENUM COMPOUNDS- PREPARATION, PROPERTIES AND STRUCTURAL CHARACTERIZATION OF HEXAKIS(NEOPENTOXY)DIMOLYBDENUM

1977 ◽  
Vol 8 (42) ◽  
pp. no-no
Author(s):  
M. H. CHISHOLM ◽  
F. A. COTTON ◽  
C. A. MURILLO ◽  
W. W. REICHERT
1977 ◽  
Vol 16 (7) ◽  
pp. 1801-1808 ◽  
Author(s):  
Malcolm H. Chisholm ◽  
F. Albert. Cotton ◽  
Carlos A. Murillo ◽  
William W. Reichert

2018 ◽  
Vol 74 (11) ◽  
pp. 1658-1664
Author(s):  
Sida Wang ◽  
Phil Liebing ◽  
Felix Engelhardt ◽  
Liane Hilfert ◽  
Sabine Busse ◽  
...  

Deliberate hydrolysis of lithium cyclopropylalkynylamidinates, Li[c-C3H5—C[triple-bond]C(NR′)2] [R′ = i Pr, Cy = cyclohexyl)], afforded the hitherto unknown neutral cyclopropylalkynylamidine derivatives c-C3H5—C[triple-bond]C—C(NR′)(NHR′) [R′ = i Pr (1), Cy (2)]. Subsequent reactions of 1 or 2 with metal(II) chlorides, MCl2 (M = Mn, Fe, Co), provided the title complexes dichloridobis(3-cyclopropyl-N,N′-diisopropylprop-2-ynamidine)manganese(II), [MnCl2(C12H20N2)2], (3), dichloridobis(3-cyclopropyl-N,N′-diisopropylprop-2-ynamidine)iron(II), [FeCl2(C12H20N2)2], (4), dichloridobis(N,N′-dicyclohexyl-3-cyclopropylprop-2-ynamidine)iron(II), [FeCl2(C18H28N2)2], (5), and dichloridobis(N,N′-dicyclohexyl-3-cyclopropylprop-2-ynamidine)cobalt(II), [CoCl2(C18H28N2)2], (6), or more generally MCl2[c-C3H5—C[triple-bond]C—C(NR′)(NHR′)]2 [R′ = i Pr, M = Mn (3), Fe (4); R′ = Cy, M = Fe (5), Co (6)] in moderate yields (30–39%). Besides their spectroscopic data (IR and MS) and elemental analyses, all complexes 3–6 were structurally characterized. The two isopropyl-substituted complexes 3 and 4 are isotypic, and so are the cyclohexyl-substituted complexes 5 and 6. In all cases, the central metal atom is coordinated by two Cl atoms and two N atoms in a distorted-tetrahedral fashion, and the structure is supported by intramolecular N—H...Cl hydrogen bonds.


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