Research Letter

Molybdenum and Tungsten Tricarbonyl Complexes of Isatin with Triphenylphosphine

Table 3

Absorption data of isatin and its complexes in different solvents.

CompoundSolvent 𝜆 (nm)

IsatinDMSO334, 418
Ethanol249, 296, 420
Toluene295, 405
C H 2 C L 2 249, 296, 415

[ M o ( C O ) 3 ( i s a t H ) ( P P h 3 ) ] DMSO284, 363, 3 8 9 a , 481
Ethanol265, 353, 363, 393, 491
Toluene282, 349, 361, 387, 473
C H 2 C L 2 263, 291, 365, 473

[ W ( C O ) 3 ( i s a t H ) ( P P h 3 ) ] DMSO248, 349, 365, 358, 448
Ethanol243, 261, 2 9 0 a , 389, 481
Toluene289, 345, 357, 387, 452
C H 2 C L 2 263, 297, 343, 379, 446

a shoulder