The low-temperature phase of morpholinium tetrafluoroborate
نویسندگان
چکیده
منابع مشابه
The low-temperature phase of morpholinium tetrafluoroborate
The crystal structure of the low-temperature form of the title compound, C(4)H(10)NO(+)·BF(4) (-), was determined at 80 K. Two reversible phase transitions, at 158/158 and 124/126 K (heating/cooling), were detected by differential scanning calorimetry for this compound, and the sequence of phase transitions was subsequently confirmed by single-crystal X-ray diffraction experiments. The asymmetr...
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The crystal structure of the title compound, [C(NH(2))(3)](6)[Mo(7)O(24)]·H(2)O, previously determined at room temperature in the monoclinic space group C2/c from Weissenberg techniques [Don & Weakley (1981 ▶). Acta Cryst. B37, 451-453], has been redetermined from low-temperature single-crystal data in the monoclinic space group P2(1)/c. The asymmetric unit contains one hepta-molybdate anion, s...
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We use the low-temperature expansion and the extension of Pirogov-Sinai theory developed in 1], and the perturbation theory of 2] to describe the phase diagrams of two families of fermionic lattice systems at low-temperature: the balanced model and a variant of the t?J model.
متن کاملLow-Temperature Phase Diagrams of Quantum Lattice
We use the low-temperature expansion and the extension of Pirogov-Sinai theory developed in [1], and the perturbation theory of [2] to describe the phase diagrams of two families of fermionic lattice systems at low-temperature: the balanced model and a variant of the t−J model.
متن کاملMorpholinium perchlorate
In the title salt, C(4)H(10)NO(+)·ClO(4) (-), which has three independent formula units, the cations are linked into chains along [100] by N-H⋯O hydrogen bonds. Each cation acts both as a donor and as an acceptor, and every cation makes one N-H⋯O hydrogen bond with a ClO(4) (-) anion. The crystal studied was an inversion twin.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2008
ISSN: 1600-5368
DOI: 10.1107/s1600536808004339