International Journal of Inorganic Chemistry

Research Article

Synthesis and Spectroscopic Studies of Some New Molybdenum, Tungsten, and Ruthenium Carbonyl Derivatives of 2-Hydroxymethylpyridine

Table 2

Important IR data for HMP and its molybdenum, tungsten, and ruthenium complexes.


Compound	IR data
Compound	(OH)	(C=O)	(C=N) (Py)	(N=N)	δ(OH)	(C–O)	(Py)	(C–H)

HMP	3249 (s)	—	1597 (s)	1438 (s)	1364 (m)	1222 (m)	633 (m)	—

PPh₃	—	—	—	—	—	—	—	1430 (m)
	—	—	—	—	—	—	—	745 (s)
	—	—	—	—	—	—	—	694 (s)
	—	—	—	—	—	—	—	493 (s)

	3445 (s)	—	1609 (s)	1478 (m)	1401 (m)	1288 (m)	651 (m)	—

	3424 (s)	—	1613 (s)	1441 (m)	1400 (m)	1286 (m)	655 (m)	—

	3423 (s)	2040 (m)	1650 (m)	1458 (m)	1432 (m)	1282 (m)	672 (m)	—
		1969 (s)
		1923 (s)

	3422 (s)	1972 (s)	1651 (s)	1433 (m)	1478 (m)	1186 (m)	695 (s)	748 (m)
		1896 (s)						722 (m)
		—						517 (s)

: strong; m: medium.
(Mo–N): 468 (m); (Mo–O): 540 (m); ν(Mo=O): 954 (s) and 880 (m); ν(Mo–O–Mo): 800 (m) and 651 (m).
(W–N): 534 (m); ν(W–O): 565 (m); ν(W=O): 944 (s) and 865 (s); (W–O–W): 803 (s) and 655 (m).
(Ru–N): 422 (m); (Ru–O): 558 (m).
(Ru–N): 459 (m); (Ru–O): 572 (m).