New thiourea complexes of cobalt(II) and nickel(II) nitrates

Basso, Silvana M.; Levitus, R.

doi:10.1016/0022-1902(68)80374-4

Journal of Inorganic and Nuclear Chemistry

1968

DOI: 10.1016/0022-1902(68)80374-4

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New thiourea complexes of cobalt(II) and nickel(II) nitrates

Silvana M. Basso

R. Levitus

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1975

1988

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Cited by 4 publications

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“…Several authors (Flint & Goodgame, 1967;Basso & Levitus, 1968) later reported the existence of several forms of the compound. The present study seems to correspond to the 'C' form reported by Flint et al, as (2) s (1) s (2) s (3) s (4) s (5) s (6) s (7) s (8) C ( 2470 (2) 2699 (2) 687 (4) 25 (1) 25 (4) 19 (8) 7 (2) 13 (2) 7534 (2) 2504 (2) 4196 (4) 20 (1) 32 (3) 35 (7) 1 (1) 14 (1) 1838 (3) 4063 (5) 1776 (7) 21 (2) 50 (9) 62 (17) 3 (4) 22 (5) 3176 (4) 3438 (5) 9166 (8) 30 (3) 54 (10) 91 (20) 7 (4) 41 (6) 2964 (4) 1711 (6) 2741 (7) 25 (2) 83 (11) 32 (17) 1 (4) 16 (5) 1851 (4) 1447 (6) -950 (8) 29 (3) 75 (10) 71 …”

mentioning

confidence: 99%

Tetrakis(thiourea)cobalt(II) nitrate hemihydrate; a monoclinic form

Baggio¹,

Manzanares²,

Baggio³

1975

Acta Crystallogr Sect B

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Abstract. Co[SC(NH2)2]4(NOa)2.½H20, monoclinic, Pc, a=17.40(4), b=11.90(3), e=9.81(2) •, fl= 101.0(3) °, V= 1990.7 Aa, Z=4 (two molecules in the asymmetric unit), Dm=l'58(1), Dx=l'59 gcm -a, kt(Mo Ke)--13"02 cm -1, 2(Mo Ke) =0.7107 A, filtered with Zr. The structure consists of nitrate anions and distorted [Co(tu)4] 2+ (tu=thiourea) cation layers parallel to (100), connected by ionic interactions and interlayer H bonds. The coordination symmetry about Co is nearly C2, taking into account only nearest neighbours, and there is evidence of an interaction between a Co(sp 3) hybrid orbital, and a delocalized tu n molecular orbital.Introduction. The crude material was kindly supplied by Dr R. Levitus. Crystals suitable for X-ray analysis were obtained by slow evaporation of an ethyl acetate solution at 0°C. They were blue-green needles elongated along c, and were mounted with this direction parallel to the spindle axis. Cell dimensions were taken from calibrated precession photographs (Mo K~ radiation). Intensity data were recorded with a crystal of approximate dimensions 1.35 x 0.19 x 0.19 mm. Levels hkO to hk7 were recorded on a Weissenberg camera, and levels hOl and Okl on a precession camera, with the same Mo Ke radiation. Multiple film and multiple exposure techniques were used. 1863 reflexions were measured (82.5 % of the Cu sphere) on mechanically integrated photographs with a microdensitometer. Of these, 330 were considered unobserved and given Fo=O. Absorption corrections were neglected. Reflexions from individual layers were cross-correlated and put on the same scale by the method of Hamilton, Rollett & Sparks (1960). Data were corrected for Lorentz and polarization factors, put on an absolute scale by a Wilson plot, and reduced to normalized structure factors 'E'.A sharpened origin-removed Patterson map was computed using the IE a-11 as coefficients. Resultant Co-Co peaks were successfully explained by both the possible space groups: Pc and P2/c. Co-S vectors, however, excluded the centrosymmetric group.Successive Fourier syntheses in the non-centrosymmetric space group Pc (with a twofold multiplicity in the general position) developed the complete structure with two independent molecules in the asymmetric unit, as required by the fact that from density measurements Z was known to equal 4.

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mentioning

confidence: 99%

Tetrakis(thiourea)cobalt(II) nitrate hemihydrate; a monoclinic form

Baggio¹,

Manzanares²,

Baggio³

1975

Acta Crystallogr Sect B

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Synthesis and structure of bis(1,1-diethyl-3-(2-chlorobenzoyl)thioureido)nickel(II)

Bailey

Rothaupt

Kullnig

1988

Inorganica Chimica Acta

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Nickel(II) complexes of 1-methylimidazoline-2(3H)-thione

Raper¹,

O’Neill²,

Daniels

1980

Inorganica Chimica Acta

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New thiourea complexes of cobalt(II) and nickel(II) nitrates

Cited by 4 publications

References 10 publications

Tetrakis(thiourea)cobalt(II) nitrate hemihydrate; a monoclinic form

Tetrakis(thiourea)cobalt(II) nitrate hemihydrate; a monoclinic form

Synthesis and structure of bis(1,1-diethyl-3-(2-chlorobenzoyl)thioureido)nickel(II)

Nickel(II) complexes of 1-methylimidazoline-2(3H)-thione

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