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Pyroborate ion

Methyl borate Section of borax structure Pyroborate ion... [Pg.127]

Two rather different configurations of the pyroborate ion have been found, in the magnesium and cobalt salts. In Co2B2 0s, (a), the planes of the BO3 groups make angles of 7° with the plane of the central B—0—B system and are twisted in opposite directions (mean B-0 approximately 1-30 A). In MgjB205, (b), the... [Pg.853]

Fig. 12.17 The structures of selected borate anions trigonal planar and tetrahedral B atoms are present, and each tetrahedral B carries a negative charge. The [B405(011)4] anion occurs in the minerals borax and kernite. In the pyroborate ion, [B205]", the B—O—B bond angle depends on the cation present, e.g. ZB—O—B = 153° in C02B2O5, and 131.5° in Mg2B205. Fig. 12.17 The structures of selected borate anions trigonal planar and tetrahedral B atoms are present, and each tetrahedral B carries a negative charge. The [B405(011)4] anion occurs in the minerals borax and kernite. In the pyroborate ion, [B205]", the B—O—B bond angle depends on the cation present, e.g. ZB—O—B = 153° in C02B2O5, and 131.5° in Mg2B205.
Orthoborates discrete BO ions Pyroborates discrete B2OS ions 0... [Pg.851]

See other pages where Pyroborate ion is mentioned: [Pg.274]   
See also in sourсe #XX -- [ Pg.350 ]

See also in sourсe #XX -- [ Pg.398 ]



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Pyroborates

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