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The chemical compound "W(CO)4(P(CH3)2C6H5)(P(C6H5)2(CH(CH3)2))" is a complex organometallic compound consisting of a tungsten (W) center. It features four carbonyl (CO) ligands, which are common in transition metal complexes, providing stability through back-bonding. One of the phosphine ligands is diisopropylphenylphosphine, denoted as P(CH3)2C6H5, which has two isopropyl groups and a phenyl group attached to the phosphorus atom. The other phosphine ligand is bis(biphenyl)dimethylphosphine, represented as P(C6H5)2(CH(CH3)2), which has two phenyl groups and a dimethylisopropyl group attached to the phosphorus. W(CO)4(P(CH3)2C6H5)(P(C6H5)2(CH(CH3)2)) is significant in organometallic chemistry due to its potential applications in catalysis and its unique electronic properties arising from the combination of metal and organic ligands.

97748-02-2

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97748-02-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97748-02-2 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 2 respectively.
Calculate Digit Verification of CAS Registry Number 97748-02:
(7*9)+(6*7)+(5*7)+(4*4)+(3*8)+(2*0)+(1*2)=182
182 % 10 = 2
So 97748-02-2 is a valid CAS Registry Number.

97748-02-2Upstream product

97748-02-2Downstream Products

97748-02-2Relevant 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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