‘A shadowy entity’: M.I.1(b) and British Communications Intelligence, 1914–1922

Gold–Heterometal Interactions and Bonds

“…Similar overall metal frameworks are found in related heptanuclear clusters containing three gold atoms, that is, two Au(PPh 3 ) units capping AuRu 2 or AuRuCo faces of trigonal bipyramidal AuRu 4 [264,387,388] or AuCoRu 3 [389] cores with axial gold atom. By contrast, the gold atoms of an Au 2 (dppm) ligand are m 3 -capping adjacent faces which include both axial atoms of the trigonal bipyramidal M 5 or Os 4 Ru skeleton in (dppm)Au 2 M 5 (CO) 15 (M ¼ Ru 263 [384], Os 264 [392]) or (dppm)Au 2 Os 4 Ru(h 6 -C 6 H 6 )(CO) 12 265 (Figure 4.39d) [392] to give a distorted, axial compressed pentagonal bipyramid with an Au-Au bond in the equatorial plane.…”

“…Heptanuclear clusters with Au-Fe [160,306,[370][371][372][373]394], Au-Ru [264,319,328,[374][375][376][377][378][379][380][381][382][383][384][385][386][387][388][389][390] and Au-Os bonds [327,[391][392][393] have also been reported. Most common structures are based on C-centered [160,306,374,375] or B-centered [376][377][378][379] [160], (b) (Ph 3 P)AuOs 6 (m 6 -P)(CO) 18 253 [391], (c) [(Et 3 P)Au] 2 Fe 5 (m 6 -C)(CO) 14 254 [370], (d) (dppm)Au 2 Os 4 Ru(h 6 -C 6 H 6 )(CO) 12 [379].…”

British signals intelligence in the trenches, 1915–1918: part 2, interpreter operators

“…Smaller I(e) sections also existed at army-level but appear to have been primarily focused on traffic analysis. 162 At least one IO was employed on cryptanalysis in GHQ from October 1916, 163 and a later draft establishment for I(e) called for ten 'interpreter and wireless operators' in the 'Wireless Section'. However, this was amended at the insistence of the RE to ten 'interpreter clerks' on the grounds that an 'interpreter operator' was a specific RE trade.…”