@misc{SchoeneichHohmannSchmidtetal., author = {Sch{\"o}neich, Michael and Hohmann, Andrea and Schmidt, Peer and Pielnhofer, Florian and Bachhuber, Frederik and Weihrich, Richard and Osters, Oliver and K{\"o}pf, Marianne and Nilges, Tom}, title = {Element allotropes and polyanion compounds of pnicogenes and chalcogenes: stability, mechanisms of formation, controlled synthesis and characterization}, series = {Zeitschrift f{\"u}r Kristallographie - Crystalline Materials}, volume = {232}, journal = {Zeitschrift f{\"u}r Kristallographie - Crystalline Materials}, number = {1-3}, issn = {2194-4946}, doi = {10.1515/zkri-2016-1966}, pages = {91 -- 105}, abstract = {The application of the EnPhaSyn (theoretical Energy diagrams, experimental Phase formation, Synthesis and characterisation) concept is reviewed with respect to prediction of structures and stability of element allotropes and compound polymorphs, their phase formation and transition processes, and their directed synthesis, respectively. Therein, the relative energetical stability (En) of target compounds and possible decomposition are determined from quantum chemical DFT calculations. Phase formation and transition (Pha) is probed by a gas balance method, developed as high temperature gas balance concept. It helped to study the synthesis and stability range of several compounds experimentally. Applications of the concept and synthesis principles (Syn) of non-equilibrium phases are presented for allotropes of P, As, P1-xAsx, as well as binary and ternary compounds including the Zintl and Laves like phases IrPTe, NiP2, CoSbS, NiBiSe, Li0.2CdP2, Cu3CdCuP10, and Cd4Cu7As.}, language = {en} } @misc{SchmidtHohmannNilgesetal., author = {Schmidt, Peer and Hohmann, Andrea and Nilges, Tom and K{\"o}pf, Marianne and Weihrich, Richard}, title = {Synthesis of Element Allotropes of Arsenic and Phosphorus by Application of Electromotive Series of Solids}, series = {Zeitschrift f{\"u}r Anorganische und Allgemeine Chemie}, volume = {640}, journal = {Zeitschrift f{\"u}r Anorganische und Allgemeine Chemie}, number = {11}, issn = {1521-3749}, doi = {10.1002/zaac.201490026}, pages = {2386}, abstract = {Calculation of electromotive series of solids allows easy prediction of reaction pathways[1]. Using the electromotive series of systems As-P-O and As-P-X (X = F, Cl, Br, I) the formation of element allotropes via the oxide and halide compounds in thermite type reactions can be deduced: phosphorous will reduce the arsenic oxides to elemental arsenic, forming grey or black allotrope, depending on reaction mixture composition.}, language = {en} }