M(benzo‐18‐crown‐6)I 4  (M = Cd, Hg): Tetraiodide, Iodide–Iodine Adduct, or an Inclusion Compound of Iodine in MI 2 @(benzo‐18‐crown‐6)? | Zendy

Striebinger Ralph | Zendy; Walbaum Christine | Zendy; Pantenburg Ingo | Zendy; Meyer Gerd | Zendy

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M(benzo‐18‐crown‐6)I 4 (M = Cd, Hg): Tetraiodide, Iodide–Iodine Adduct, or an Inclusion Compound of Iodine in MI 2 @(benzo‐18‐crown‐6)?

Author(s) -

Striebinger Ralph,

Walbaum Christine,

Pantenburg Ingo,

Meyer Gerd

Publication year - 2008

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.200800224

Subject(s) - iodine , chemistry , orthorhombic crystal system , iodide , acetonitrile , adduct , molecule , crystal structure , nuclear chemistry , inorganic chemistry , crystallography , organic chemistry

M(benzo‐18‐crown‐6)I 4 (M = Cd, Hg) are obtained as red columnar crystals from the reactions of benzo‐18‐crown‐6 (b18c6), cadmium and mercury iodide, respectively, and iodine in molar ratios of 1:1:2 in acetonitrile. They both crystallize with the orthorhombic crystal system, P2 1 2 1 2 1 , a = 833.7(1), b = 1610.9(1), c = 1846.8(1) pm, V = 2480.3(1) 10 6 ·pm 3 , Z = 4, for M = Cd and a = 823.4(1), b = 1616.5(1), c = 1866.1(1) pm, V = 2483.8(2) 10 6 ·pm 3 for M = Hg. The crystal structures consist of [M(b18c6)]I 2 molecules which are connected to a slightly lengthened iodine molecule via a secondary contact, according to the formulation I 2 @[MI 2 @(b18c6)].

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