The Crystal Structure of Thiosemicarbazide.

Structure of N-(diethylaminothiocarbonyl)benzamidine

“…-N-C(S)-N-elements, e.g. thiourea [1-720 (9)AI (Truter, 1967) and thiosemicarbazide [1.701 (5) ]k] (Hansen & Hazell, 1969 (12) 5753 (17) 7671 (11) 4846 (6) 49 (5) * U~, = ~U,, + U22 + %3).…”

Structure of diphenacyl selenide, C16H14O2Se

“…The observed intramolecular Se...O distance of 2.874 (8)A is longer than the covalent distance of 1.83/k and significantly shorter than the van der Waals sum of 3.4 A. Such Se..-O distances in the range 2.6-3.1/k have been reported in solid selenium oxide (McCullough, 1937), in KH3(SeOa) 2 (Hansen, Hazell & Rasmussen, 1969) and in SbC15.SeOCI2.N(CHa)4C1.5SeOCI 2 (Hermodsson, 1967a,b). Hence the central Se atom can be regarded to be three-coordinated to C(1), O(1) and C(9) and deviates by 0.429 (5) ,/k from the plane formed by them.…”

Synthesis and structure of dichlorobis(thiosemicarbazide)mercury(II)

“…Both N(1) and N(3) are oriented toward the S atoms in the structure. This is the same as the packing of the free tsc, in which the hydrogen atoms are pointing toward the S atoms due to electrostatic attraction (8).…”

“…The inercury atom agent. the configuratio~i is different from that of is coordinated in an unusual, approximately the free molecule (8). However, in the structure tngonal planar, arrangement by two equivalent thiourea sulfur atonis and one chlor~ne atoin In HgCl,(tu), (1).…”