Synthesis and Characterization of the New Dicyanamide LiCs2[N(CN)2]3

Mann, Markus; Reckeweg, Olaf; Dronskowski, Richard

doi:10.3390/inorganics6040108

Cited by 17 publications

(27 citation statements)

References 29 publications

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“…Crystalline powder of Hg2[dca]2 was synthesized by mixing stoichiometric amounts of Na[dca] and Hg2(NO3)2•2H2O in water, followed by precipitation, but the fine powder was unsuitable for [dca] has been described in a previous paper [23]. The suspension was stirred for twelve hours under the exclusion of light.…”

Section: Synthesesmentioning

confidence: 99%

“…Binary dicyanamide compounds are known for ammonium [4], alkali metals [5][6][7][8] (except Fr), alkaline-earth metals [9] (except Be and Ra), transition metals (Cr-Zn, except Fe) [10][11][12][13][14][15][16], and rare-earth metals (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb) [17][18][19]. Ternary compounds, such as KCs[dca] 2 [20], LiK[dca] 2 [21], LiRb[dca] 2 [21], NaRb 2 [dca] [22], and LiCs 2 [dca] 3 [23] are also known.…”

Section: Introductionmentioning

confidence: 99%

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Syntheses and Characterization of Two Dicyanamide Compounds Containing Monovalent Cations: Hg2[N(CN)2]2 and Tl[N(CN)2]

et al. 2018

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Crystals of Hg2[N(CN)2]2 were grown by a slow diffusion-reaction between aqueous Hg2(NO3)2·2H2O and Na[N(CN)2]. Hg2[N(CN)2]2 adopts the triclinic space group P 1 ¯ (no. 2) with a = 3.7089(5), b = 6.4098(6), c = 8.150(6) Å, α = 81.575(6)°, β = 80.379(7)°, γ = 80.195(7)°, and Z = 1. Crystals of Tl[N(CN)2] were obtained from the reaction of TlBr with Ag[N(CN)2] in water. Single-crystal structure analyses evidence that Tl[N(CN)2] is isotypic to α-K[N(CN)2] and adopts the orthorhombic space group Pbcm (no. 57) with a = 8.5770(17), b = 6.4756(13), c = 7.2306(14) Å, and Z = 4. Regarding volume chemistry, the dicyanamide anion occupies ca. 44 cm3·mol−1, and so it corresponds to a large pseudohalide. The IR spectra of both compounds exhibit vibrational modes that are characteristic of the dicyanamide anion.

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Section: Synthesesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Syntheses and Characterization of Two Dicyanamide Compounds Containing Monovalent Cations: Hg2[N(CN)2]2 and Tl[N(CN)2]

et al. 2018

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“…An additional advantage over traditional graphite-based materials is that dicyanamide should provide an alternative to intercalate Na since this is impossible in pristine graphite, as alluded to already. 8,62,65,66,[86][87][88][89][90] 5a-c) arrive at Löwdin charges of about +0.7 e, which is somewhat smaller than the cationic Löwdin charge of +0.8 e in LiC6 and LiC12 (Fig. 2).…”

Section: Dicyanamide Saltsmentioning

confidence: 86%

First-Principles Plane-Wave-Based Exploration of Cathode and Anode Materials for Li and Na-ion Batteries

Ertural

Stoffel

Müller

et al. 2021

Preprint

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We present a first-principles study based on plane-wave derived Löwdin population analysis and other local bonding descriptors to investigate cathode and anode materials for lithium and sodium ion batteries. By comparing the Löwdin charges of common graphite-based anode materials such as LiC6 and LiC12 to other phases such as salts of dicyanamide and nanoporous carbon-based compounds, new conclusions of an improved intercalation behavior of the latter are derived. In addition, we explore the stability of the dicyanamide salts concerning the removal of Li and Na atoms from the compounds with some of them resulting in dimerized structures. In particular, having a look at the different kinds of bonds and the corresponding covalency indicators reveals new insights into the change of the bonds during dimerization. Considering the generally high thermal stability of metal dicyanamide salts, which are solid at room temperature, their electrochemical activity as well as non-toxicity of alkali metal-based compounds, these materials are potential alternatives to commercially available electrodes, particularly for sodium ion batteries, to pristine graphite-based anode materials. This material is available free of charge via the Internet at http://pubs.acs.org.

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“…While synthesis and characterization of U IV andU VI oxidesand relatedframeworks is relatively straightforward, [12] U V is more elusivet o access and characterize.H owever,i ts isolation and characterization is important to understandU IV $U VI redox behavior in nature, [13] nuclear materials and wastes, [14] and represents potential to discover unusualm agnetic states. [15] Results and Discussion…”

Section: Introductionmentioning

confidence: 99%

Building [U^IV₇₀(OH)₃₆(O)₆₄]⁴⁻ Oxocluster Frameworks with Sulfate, Transition Metals, and U^V

Colliard

Nyman

2020

Chemistry A European J

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Uranium(IV) oxide clusters,c olloids, and materials are designed and studied for 1) nuclear materials applications, 2) understanding the environmental fate and transport of actinides, and 3) exploring the complex bondingb ehavior of open-shell f-elements. U IV-oxyhydroxsulfate clusters are particularlyr elevant in industrial processes and in nature. Recent studies have shown that counter-cations to these polynucleara nions differentiate rich structural topologies in the solid-state. Herein, we present nine different structures with wheel-shaped [U 70 (OH) 36 (O) 64 (SO 4) 60 ] 4À (U 70)l inked into one-andt wo-dimensional frameworks with sulfate,d ivalent transition metals (Cr II ,F e II ,C o II ,N i II)a nd U V .S mall-angle X-ray scattering of these phases dissolved in butylamine reveals differing supramolecular assembly of U 70 clusters, controlled primarily by sulfates. However,o bserved trends in transition metal linkingg uide future design of U 70 materials with different topologies. Finally,U 70 linking via U IV-O-U V-O-U IV bridges presentsarare example of mixed-oxidation-state uranium oxides without disorder.

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Synthesis and Characterization of the New Dicyanamide LiCs2[N(CN)2]3

Cited by 17 publications

References 29 publications

Syntheses and Characterization of Two Dicyanamide Compounds Containing Monovalent Cations: Hg2[N(CN)2]2 and Tl[N(CN)2]

Syntheses and Characterization of Two Dicyanamide Compounds Containing Monovalent Cations: Hg2[N(CN)2]2 and Tl[N(CN)2]

First-Principles Plane-Wave-Based Exploration of Cathode and Anode Materials for Li and Na-ion Batteries

Building [U^IV₇₀(OH)₃₆(O)₆₄]⁴⁻ Oxocluster Frameworks with Sulfate, Transition Metals, and U^V

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Synthesis and Characterization of the New Dicyanamide LiCs2[N(CN)2]3

Cited by 17 publications

References 29 publications

Syntheses and Characterization of Two Dicyanamide Compounds Containing Monovalent Cations: Hg2[N(CN)2]2 and Tl[N(CN)2]

Syntheses and Characterization of Two Dicyanamide Compounds Containing Monovalent Cations: Hg2[N(CN)2]2 and Tl[N(CN)2]

First-Principles Plane-Wave-Based Exploration of Cathode and Anode Materials for Li and Na-ion Batteries

Building [UIV70(OH)36(O)64]4− Oxocluster Frameworks with Sulfate, Transition Metals, and UV

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Building [U^IV₇₀(OH)₃₆(O)₆₄]⁴⁻ Oxocluster Frameworks with Sulfate, Transition Metals, and U^V