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110904-39-7

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110904-39-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 110904-39-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,9,0 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 110904-39:
(8*1)+(7*1)+(6*0)+(5*9)+(4*0)+(3*4)+(2*3)+(1*9)=87
87 % 10 = 7
So 110904-39-7 is a valid CAS Registry Number.

110904-39-7Relevant articles and documents

Electron transfer from borohydride and selective reductions of iron cations. Synthesis of tetrathiooxalate iron derivatives

Touchard, Daniel,Fillaut, Jean-Luc,Khasnis, Dilip V.,Dixneuf, Pierre H.,Mealli, Carlo,Masi, Dante,Toupet, Lo?c

, p. 67 - 75 (2008/10/08)

Cations of the type Fe(η2-CS2R)(CO)2(L)2+ (L = PPh3; R = Me (2a), Et (2b), CH2C(Me)=CH2 (2c)) react with NaBH4 to afford, via electron transfer, C-C coupling products (RS)2C2S2Fe2(CO)4(L) 2 (3a-c). Complexes 2 containing an acylalkyl group, R, also give complexes 3d,e, but only on reduction with activated magnesium. Reduction of cations 2a-c with sodium amalgam leads first to 3a-c and then to the (RS)2C2S2Fe(CO)2(L) complexes (4). Complexes 4a-c are also obtained on treatment of 3a-c with Lewis acids in the presence of air. Cation 2h (L = P(OMe)3, R = Me) is less easily reduced (Ec = -0.81 V vs SCE) than 2a (L = PPh3; Ec = -0.74 V vs SCE) and, when treated with NaBH4, undergoes electron transfer and hydride addition: complex 6, analogous to 3, and Fe(η2-HCS2Me)(CO)2L2 (5) are thus formed. Reaction of 2h with Na/Hg affords by contrast small amounts of FeCS(CO)2L2 (8) and (R2S)2C2S2Fe(CO)L2 (9). The X-ray diffraction structures of 3a and 4a have been determined. 3a: space group P1, Z = 2, a = 9.669 (2) A?, b = 13.477 (3) A?, c = 17.323 (3) A?, α = 101.1 (2)°, β = 91.5 (2)°, γ = 110.3 (2)°, V = 2048 A?3, R = 0.058 for 3802 reflections having I > σ(I). 4a: space group P21/a, Z = 4, a = 24.144 (6) A?, b = 10.017 (2) A?, c = 10.745 (2) A?, α = 97.38 (2)°, V = 2577 A?3, R = 0.084 for 2440 reflections having I > 3σ(I).

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