4-Biphenylyl phenyl thioketone (I), C19H14S, and 1-naphthyl phenyl thioketone (II), C17H12S

(I): Mr=274"39, orthorhombic, Pbca, a = 7.443 (1), b= 32.691 (3), c= 11.828 (2)A, V= 2877.98A 3, Z=8, Din= 1.216 (flotation in KI), D x = 1.266 g cm -3, /~(Cu Ka, 2 = 1.5418 A) = 17.55 cm -1, F(000) = li52.0, T= 293 K, R = 6.8%, 1378 significant reflections. (II): M r = 248.35, orthorhombic, P212~21, a = 5.873 (3), b = 13.677 (3), c = 15-668 (5) A, V = 1260.14 A 3, Z = 4, D,n = 1.297 (flotation in KI), Dx= 1.308 g cm -a, /t(CuKa, 2=1.5418 A) = 19.55 cm -~, F(000) = 520.0, T= 293 K, R = 6.9%, 751 significant reflections. Crystals of (I) and (II) undergo photo-oxidation in the crystallinestate. In (I) the dihedral angle between the phenyl rings of the biphenyl moiety is 46 (1) °. The C=S bond length is 1.611(5) A in (I) and 1.630 (9)/~ in (II). The correlation between molecular packing and reactivity is discussed.

Application of Jacques Judah Lyons to K. K .S. I. for hazan

Digital image

Call for meeting regarding I. B. Seixas offering himself as hazzan

Digital image

Application to K.K.S.I. by Isaac Gomez for clerk

Digital image

Resolution of K.K.S.I. trustees regarding Irish famine

Digital image

Statement of the Funds of K.K.S.I.

Digital image

Petition of Abraham I. Abrahams

Digital image

Simon Levy proposal to establish Hebrew school at K.K.S.I.

Digital image

Letter of David G. Seixas to K.K.S.I.

Digital image

Blank form of bond used by trustees of K.K.S.I. for house and lot on Mill Street (unsigned)

Digital image

Resolution of K.K.S.I. to Sir Moses Montefiore regarding his visit to Russia

Digital image

Subscription by members of K. K. S. I.

Digital image

Registry of cases of circumcision by Abraham I. Abrahams in New York

Digital image

Names of boys and girls in the K.K.S.I school, March 8, 1795. Report of the School Committee, February 2, 1794

Digital image

Letter to trustees of K.K.S.I. from James Foster, regarding his desire to become a Jew

Digital image