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The chemical compound "W(CO)4(P(CH2CH3)(C6H5)2)(P(CH3)(C6H5)2)" is a complex organometallic compound consisting of a tungsten (W) center. It features four carbonyl (CO) ligands, which are linear two-atom groups that act as electron-pair donors to the metal. The compound also contains two phosphine ligands, which are phosphorus-containing molecules that can donate a lone pair of electrons to form a bond with the metal. One of the phosphine ligands is diphenylethylphosphine, with the formula P(CH2CH3)(C6H5)2, indicating two phenyl (C6H5) groups and one ethyl (CH2CH3) group attached to the phosphorus atom. The other phosphine ligand is dimethyldiphenylphosphine, with the formula P(CH3)(C6H5)2, which has two methyl (CH3) groups and two phenyl (C6H5) groups attached to the phosphorus atom. W(CO)4(P(CH2CH3)(C6H5)2)(P(CH3)(C6H5)2) is significant in organometallic chemistry and catalysis due to its unique structure and potential applications in various chemical transformations.

97748-07-7

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97748-07-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97748-07-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,7,4 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 97748-07:
(7*9)+(6*7)+(5*7)+(4*4)+(3*8)+(2*0)+(1*7)=187
187 % 10 = 7
So 97748-07-7 is a valid CAS Registry Number.

97748-07-7Downstream Products

97748-07-7Relevant academic research and scientific papers

Relative phosphorus ligand sizes from cis:trans distributions of W(CO)4(L)(L′) products obtained from the reaction of W(CO)4(L) (py) with L′ (L and L′ = phosphines), reaction kinetics, and syntheses of starting materials

Boyles, Melissa L.,Brown, Daniel V.,Drake, Dennis A.,Hostetler, Cheryl K.,Maves, Constance K.,Mosbo, John A.

, p. 3126 - 3131 (2008/10/08)

The relative sizes of 12 phosphines (L′ = PMe3, PPhMe2, PEt3, P(n-Bu)3, PPh2Me, PPh2Et, PPh3, P(p-tol)3, PPh2(i-Pr), PPh2(t-Bu), PBz3, or PCy3) have been studied by determining cis:trans ratios of W(CO)4(L)(L′) products obtained from reactions of W(CO)4(L)(py) complexes with L′ (L = PPhMe2, PPh2Et, or P(p-tol)3). In general, a decrease in the cis:trans ratio was observed as the Tolman cone angle of L′ increased. Exceptions occurred with PEt3 and P(H-Bu)3, for which cone angles of 140-145°, rather than Tolman's value of 132°, would be consistent with the other ratio data. Kinetic studies of these reactions indicate that dissociative loss of pyridine is rate limiting. Also reported are the synthesis of W(CO)4(L)(py) from W(CO)4(py)2 and L and 31P NMR data for 21 new W(CO)4(L)(L′) complexes.

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