Fig. 3: Molecular structures of the anions [η3-Bi3W(CO)3]3– ([1]3–), [W(CO)4(H)2]2– ([2]2–), [µ:η3-Bi3{W(CO)3}2]3– ([3]3–), and [µ2:η3-Bi3{W(CO)3W(CO)4}]3– ([4]3–). | Communications Chemistry

Fig. 3: Molecular structures of the anions [η3-Bi3W(CO)3]3– ([1]3–), [W(CO)4(H)2]2– ([2]2–), [µ:η3-Bi3{W(CO)3}2]3– ([3]3–), and [µ2:η3-Bi3{W(CO)3W(CO)4}]3– ([4]3–).

From: Insight into the formation of bismuth-tungsten carbonyl clusters

Fig. 3

The structures were determined by means of single-crystal X-ray diffraction of the corresponding salts. Note that the H atoms in [2]2– could not be refined from the difference Fourier map, nor could they be affixed to the structure; their positions are therefore indicated schematically. However, the presence of H atoms at these coordination sites was unambiguously confirmed by quantum chemical calculations of the structure of the {W(CO)4}2– fragment with and without the H atoms (see below).

Back to article page