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... include OsO3F2 ^^ OsOF5 18O0C On heating a 3:1 OsFJOsO4 mixture at 150-20O0C, a mixture OfOsOF5 and OsO4 is obtained that can be separated by using the greater volatility of OsOF5 OsO2F3 is a yellow-green... and terminal fluorines [28] Blue-green OsOF4 (m.p 8O0C) is a byproduct in the synthesis of OsOF5 and can also be made in small quantities by reduction of OsOF5 on a hot tungsten wire In the gas... A (trans) The shortness of the M-O bridge bonds is explained by the formation of two M—O—M threecentre MOs Figure 1.10 shows the formation of one of these by overlap of Figure 1.9 The dimeric