Tetraaquabis(5-nitrotetrazolato-N2)nickel(II)

Charalambous, J.; Georgiou, George Cleovoulos; Henrick, Kim; Bates, Luke; Healey, Merinda R.

doi:10.1107/s0108270187094629

Cited by 9 publications

(11 citation statements)

References 2 publications

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“…This method was employed to prepare silver 5-nitraminotetrazolate (12, M = Ag), 64 65 The transformation of 5-aminotetrazole (13) via sodium salts 43 or copper salts and the 5-nitrotetrazolate anion afforded nickel(II) (44) 66 and mercuric (45) 67 5-nitrotetrazolates (Scheme 1). The presence of inner-sphere water and the monodentate mode of coordination of the tetrazolate anion in complex 44 were established by X-ray diffraction analysis.…”

Section: Synthesis Of Metal Derivatives From Tetrazolesmentioning

confidence: 99%

Metal derivatives of tetrazoles

Гапоник¹,

2006

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Published data on the synthesis, structure, properties Published data on the synthesis, structure, properties and applications of metal derivatives of tetrazoles are generalised and applications of metal derivatives of tetrazoles are generalised and described systematically. Compounds based on the anionic and described systematically. Compounds based on the anionic and neutral tetrazole forms, and neutral tetrazole forms, C C-and -and N N-mono-and -mono-and C C, ,N N-disubsti--disubstituted tetrazoles are considered. The bibliography includes 464 tuted tetrazoles are considered. The bibliography includes 464 references references. . ReceivedDepending on the reaction conditions, meta-and para-5,5 Hphenyleneditetrazoles 25 react with Cd, Zn and Mn(II) salts to give essentially different, as regards both composition and structure, complexes 26, 27, 44 28, 45 29. 46 The structures of compounds 26 ± 29 were determined by X-ray diffraction. Compounds 26 ± 28 in which the doubly charged anions derived from tetrazole 25 function as bridges are two-and three-dimensional coordination polymers. Conversely, compound 29 is a mononuclear aqua complex containing no metal ± tetrazole coordination bond. In the structure of complex 28, one-dimensional channels were found which occupy up to 35% of the void volume and encapsulate tetrameric cyclic water clusters and DMF molecules. On heating to 150 8C, water and DMF are removed from the channels, which accounts for the interest of researchers in this type of compound for the preparation of inclusion compounds and sorbents. A coordination polymer with a composition similar to complex K + 7

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Section: Synthesis Of Metal Derivatives From Tetrazolesmentioning

confidence: 99%

Metal derivatives of tetrazoles

Гапоник¹,

2006

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“…Here, we would like to report on the synthesis and characterization of 2 and 3 as well as their crystal structures. To our knowledge, together with our reports [6,7] and that of the nickel salt [8], these are the only papers where the structure of the anion of B has been determined by X-ray analysis.…”

Section: Introductionmentioning

confidence: 77%

Preparation and crystal structures of two salts with the 5‐nitrotetrazolate anion

Klapötke

Sabaté

Welch

2009

Heteroatom Chemistry

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Tetraphenylphosphonium 5-nitrotetrazolate (2) was prepared by metathesis of sodium 5-nitrotetrazolate dihydrate (1; NaNT) with tetraphenylphosphonium chloride in acetone. The new compound was fully characterized by vibrational (IR, Raman) and NMR ( 1 H, 13 C, and 14 N) spectroscopies, elemental analysis, and mass spectrometry. Attempted synthesis of 2-methyl-5-nitrotetrazole (2-MeNT) by methylation of 1 with dimethylsulfate at reflux from acetonitrile failed, and crystals of an explosive compound with the formula (NaNT) 2 (H 2 O) 2 CH 3 CN (3), NT = 5-nitrotetrazolate, formed. X-ray diffraction techniques were used to determine the crystal structure of 2 and 3. Compound 2 crystallizes in the orthorhombic space group P2 1 2 1 2 1 with four molecules in the unit cell and unit cell parameters a = 7.7413(4)Å, b = 13.624(1)Å, c = 21.252(1)Å, and V = 2241.5(2)Å 3 , whereas 3 crystallizes in the orthorhombic space group Ama2 with four formula unit in the unit cell and unit cell parameters a = 14. 805(6)

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“…The structure of some commonly used tetrazole‐based ligands can be seen here. Most of the literature dealing with tetrazole‐based materials concentrates on nitrogen‐rich salts with cations such as ammonium,11 hydrazinium,11, 12 guanadinium,11 aminoguanadinium,11 diaminoguanidinium,11 and triaminoguanidinium,11, 13 etc.,14 or salts with energetic anions such as nitrate, perchlorate, picrate, azide, dinitramide,15 5,5′‐azotetrazolate,11a, 12a, 15 or 5‐nitrotetrazolate,3f, 16 among others 3f. 17 On the other hand, descriptions of metal compounds that contain a tetrazole moiety are much more elusive in the literature and many of them are less interesting for use in energetic applications.…”

Section: Introductionmentioning

confidence: 99%

“…17 On the other hand, descriptions of metal compounds that contain a tetrazole moiety are much more elusive in the literature and many of them are less interesting for use in energetic applications. Compounds of this type that have been reported before include 5‐nitrotetrazole (5‐NT) alkali salts of alkaline earth metals,18 Fe 2+ ,19 Co 2+/3+ ,20 Ni 2+ ,16 Cu 2+ ,21 and Hg + 22; salts of 1,5‐diamino‐1 H ‐tetrazole (1,5‐DAT) with Co 3+ ,23 Ni 2+ ,24a Cu 2+ ,24 Zn 2+ , and Cd 2+ ;24a complexes of Mg 2+ and Ca 2+ ,25a Cr 3+ ,25b Fe 2+/3+ ,25b Co 2+/3+ ,25c, d Ni 2+ ,25e Cu 2+ ,25e, f Zn 2+ ,25g and Cd 2+ 25h, i with 5‐AT; and 1R‐substituted‐5‐AT transition‐metal complexes of divalent and trivalent metals (Co 3+ , Ni 2+ , Cu 2+ , Zn 2+ , Ag + , and Pd 2+ ) with R=Me (1‐MAT),26a CH 2 C(O)NHNH 2 ,26b–d CHCH 2 ,27a and Ph 27b. Some of these compounds have found uses in, or are prospective candidates for use in, pyrotechnic mixtures and they also have other interesting applications, such as their use in laser‐induced explosives (LIEs; for example, Co complexes) 25d.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, apart from some recent work in our group on tetrazole‐based alkali metal salts,18a, 28 some copper complexes,1h, 29a, c and our last report on the molecular structure of silver 1‐methyl‐5‐nitriminotetrazole,29d there are not many reports dealing with the crystal structure of tetrazole‐based metal complexes, particularly when the cation is a transition metal. To our knowledge, the only examples reported so far are those of [Ni(5‐NT) 2 ],16 [Cd(5‐AT) 2 ],25i [CuCl 2 (DAT)],24b and [Co(1‐MAT) 2 (NH 3 ) 4 ] 23a…”

Section: Introductionmentioning

confidence: 99%

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Energetic Silver Salts with 5‐Aminotetrazole Ligands

Karaghiosoff

Klapötke

Sabaté

2009

Chemistry A European J

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Methylation of 5-amino-1H-tetrazole (1) gives 1-methyl-5-amino-1H-tetrazole (2) and 2-methyl-5-amino-1H-tetrazole (3). A new family of energetic silver complexes based on ligands 1, 2 and 3 with perchlorate and nitrate anions (10-15) were synthesized and characterized by using IR, Raman, and NMR ((1)H, (13)C, (14)N, and (35)Cl NMR) spectroscopy, elemental analysis, and mass spectrometry. The crystal structures of the compounds were determined where possible and reveal interesting structural details that are discussed herein. Additionally, differential scanning calorimetry was used to assess the thermal stability of the new salts, which showed excellent thermal stabilities at temperatures up to and above 225 degrees C. Standard tests were also used to assess the sensitivity of the materials towards impact and friction. All the silver complexes showed increased sensitivity values in comparison with analogous protonated 5-amino-1H-tetrazolium perchlorate and nitrate salts. Some of these materials have sensitivity values that are comparable to commonly used primary explosives and all of them either deflagrate (12-14) or detonate loudly (10 and 11) on contact with an open flame. Lastly, nitrate salt 11 is easily initiated by thermal shock. It shows reasonably low sensitivity in comparison with other silver salts (e.g., silver azide or silver fulminate), which makes handling it much less hazardous. Compound 11 also has good thermal stability, decomposing at approximately 300 degrees C, and shows interesting properties as a more environmentally benign alternative to lead(II) diazide in initiation devices for civil and military applications.

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Tetraaquabis(5-nitrotetrazolato-N2)nickel(II)

Cited by 9 publications

References 2 publications

Metal derivatives of tetrazoles

Metal derivatives of tetrazoles

Preparation and crystal structures of two salts with the 5‐nitrotetrazolate anion

Energetic Silver Salts with 5‐Aminotetrazole Ligands

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