Influence of coordination on N-H ⋯ X− hydrogen bonds. Part II. Zn(NH3)2Br2 and Ni(NH3)2X2 (X is Cl− and Br−)

Eβmann, R.; Mockenhaupt, Ch.

doi:10.1016/s0584-8539(96)01766-7

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…The ammoniates [Fe(NH 3 ) 6 ]Cl 2 and Fe(NH 3 ) 2 Cl 2 were additionally characterized by infrared spectroscopy ( Figure S12) in an inert gas atmosphere. The obtained results agree well (Table 3 and Table 4 [47][48][49] In an in situ neutron diffraction experiment FeCl 2 was reacted with 130 sccm of flowing ammonia. While increasing the temperature only, the formation of [Fe(NH 3 ) 6 ]Cl 2 and Fe(NH 3 ) 2 Cl 2 besides FeCl 2 was observed ( Figure 13 Figure S13).…”

Section: Investigations Of the Reaction Of Fecl 2 With Nhsupporting

confidence: 74%

Formation and Decomposition of Iron Nitrides Observed by in situ Powder Neutron Diffraction and Thermal Analysis

Widenmeyer

Hansen

Meissner

et al. 2014

Zeitschrift anorg allge chemie

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Abstract. In order to gain more information on the formation and decomposition behavior of various iron nitrides from different starting materials in situ neutron diffraction and thermal analysis under application of different gas atmospheres and heating rates were carried out. The following phases were observed during these investigations: crystalline α-Fe, γ-FeN z , γЈ-Fe 4 N y , ε-Fe 3 N 1+x , ζ-Fe 2 N, FeCl 2 , [Fe(NH 3 ) 6 ]Cl 2 , Fe(NH 3 ) 2 Cl 2 , and amorphous Fe(NH 3 )Cl 2 . In situ neutron diffraction data were collected in high quality, due to an optimized experimental setup with a time resolution of two minutes on D20 (Institut Laue-Langevin) allowing for detailed Rietveld analyses. For all phase transitions, decomposition and formation temperatures a strong

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Section: Investigations Of the Reaction Of Fecl 2 With Nhsupporting

confidence: 74%

Formation and Decomposition of Iron Nitrides Observed by in situ Powder Neutron Diffraction and Thermal Analysis

Widenmeyer

Hansen

Meissner

et al. 2014

Zeitschrift anorg allge chemie

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“…Often this is accompanied by order}disorder transformations (e.g., in hexaammine metal(II) halides (4)). With respect to the last point, the role of hydrogen bonds in ammines was examined (e.g., (5,6)). Additionally, ammines may be used as precursors for crystal growth of nitrides in supercritical ammonia (e.g., Cu N (7), Cu PdN (8), or -Mn N (9)).…”

Section: Ammines Of Simple Salts M(nhmentioning

confidence: 99%

Preparation and Crystal Structures of Ni(NH3)2Cl2 and of Two Modifications of Ni(NH3)2Br2 and Ni(NH3)2I2

Leineweber

Jacobs

2000

Journal of Solid State Chemistry

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Facile Uptake and Release of Ammonia by Nickel Halide Ammines

et al. 2016

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Although major difficulties are experienced for hydrogen‐ storage materials to meet performance requirements for mobile applications, alternative fuel cell feedstocks such as ammonia can be stored in the solid state safely at high capacity. We herein describe the NiX2‐NH3 (X=Cl, Br, I) systems and demonstrate their exceptional suitability for NH3 storage (up to 43 wt % NH3 with desorption that begins at 400 K). The structural effects that result from the uptake of NH3 were studied by powder X‐ray diffraction (PXD), FTIR spectroscopy and SEM. NH3 release at elevated temperatures was followed by in situ PXD. The cycling capabilities and air stability of the systems were also explored. NH3 is released from the hexaammines in a three‐step process to yield the diammine, monoammine and NiX2 dihalides respectively and (re)ammoniation occurs readily at room temperature. The hexaammines do not react with air after several hours of exposure.

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Influence of coordination on N-H ⋯ X− hydrogen bonds. Part II. Zn(NH3)2Br2 and Ni(NH3)2X2 (X is Cl− and Br−)

Cited by 5 publications

References 5 publications

Formation and Decomposition of Iron Nitrides Observed by in situ Powder Neutron Diffraction and Thermal Analysis

Formation and Decomposition of Iron Nitrides Observed by in situ Powder Neutron Diffraction and Thermal Analysis

Preparation and Crystal Structures of Ni(NH3)2Cl2 and of Two Modifications of Ni(NH3)2Br2 and Ni(NH3)2I2

Facile Uptake and Release of Ammonia by Nickel Halide Ammines

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