Research Notes I, 1949

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(a₁)_max,max occurs at H = 1.0745

(a₁)_max,max = 0.2950

Jan. 30, 1950 Bi209 (7010-7000KC) Time Distance bet Markers Marker Resonance distance Resonance frequency 4 min 13.0 mm #1 8.0 mm 7004.0KC 20 13.0 " 8.5 7003.6 30 13.0 " 8.5 7003.6 42 13.0" 8.5 7003.6 v(Bi209)=7003.6KC D2(6700->6690KC) Time Distance bet Markers Markers Resonance Distance Resonance Frequency 15 min 12.5 mm #1 11.5 mm 6690.9KC 26 12.5 " 12.0 6690.5 36 12.5 " 12.0 6690.5 50 12.0 " 11.5 6690.5 v(D2)=6690.5 KC v(Bi209)/v(D2)=7003.6/6690.5=1.04680(1+-2x10-5) u(Bi29)=9/2x0.857632x1.04680=4.03996

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Feb. 13, '50

N¹⁴ occurs at 3.34 MC at H₀ = 10600 G in K₃Co(CN)₆. Search for N¹⁴ in Na₃Co(NO₂)₆ in freq range 3.445 MC - 3.26 MC is negative

As to the structure of NaSbF₆ refer to Nils Schrewelius, Röntgenuntersuchung der Verbindungen NaSb(OH)₆, NaSbF₆, NaSbO₃ und gleichartiger Stoffe. Zeitschrift für anorganische und allgemeine Chemie Bd 238, 248 (1938)

NaSbF₆ is cubic a = 8.18 Å The structure is probably the space group 4 Na in 4(b) , 4 Sb in 4(a), 24 F in 24(d) ; x = -0.05, y = -0.05 , z = 0.225

within the SbF₆^- octahedron 2.67, 2.78 and from octahedron [?] octahedron 2.72 Å