Table 1 Representation of important absorption bands (cm−1) for TBA-PW11 and TBA-SiW11 heterogeneous and nano catalysts.

From: Incorporating heterogeneous lacunary Keggin anions as efficient catalysts for solvent-free cyanosilylation of aldehydes and ketones

Compound

νas (X–Oa)

νs (X–Oa)

νas (W–Ot)

νas (W–Ob) and νas (W–Oc)

ν (C–H)

TBA-PW11

1053

517

957

888, 805

2873–2961

Nano-sized TBA-PW11

1059

516

958

888, 812

2873–2961

TBA-SiW11

1061

532

966

920, 804

2873–2960

Nano-sized TBA-SiW11

1059

531

966

920–801

2872–2961

Back to article page