Results 11 to 20 of about 879 (156)

Heat Capacity and Absolute Standard Entropy of the High Temperature Polymorph of Calcium Boranate and Thermodynamic Calculations Regarding its Decomposition and Rehydrogenation. [PDF]

Chemphyschem
The decomposition route and rehydrogenation ability as well as the behavior in the low temperature range of β‐Ca(BH4)2 synthesized by a metathesis reaction are investigated based on heat capacity measurements over a broad temperature range using two different calorimetric techniques.
Burkmann K, Habermann F, Walnsch A, Störr B, Seidel J, Bohmhammel K, Gumeniuk R, Mertens F.   +7 more
europepmc   +2 more sources

Ca²⁺ Stabilized by Carborate Anions: Synthesis, Structure, and Reactivity. [PDF]

Chemistry
Calcium salts consisting of Ca2+ weakly coordinated by carborate counterions have been prepared through anhydrous and aqueous methods. The Ca2+ center is sufficiently Lewis acidic to weakly coordinate olefins, alkynes and aromatics, and catalyze the hydrosilylation of 1‐hexene and several alkynes.
Munshi S, Gupta G, Gourlaouen C, Dagorne S, Wehmschulte RJ.   +4 more
europepmc   +2 more sources

Deep Eutectic Solvents Formed by Complex Hydrides: A New Class of Hydrogen-Rich Liquid. [PDF]

Adv Mater
This work discovers a new type of deep eutectic solvent composed of ammonia borane (NH3BH3, AB) and tetrabutylammonium borohydride (TBABH). The new liquids possess a hydrogen content higher than 5 wt%, thus representing promising high‐energy liquid hydrogen carriers. The strong hydrogen bonding between AB and TBABH explains the depletion of the melting
Lombardo L, Nishiguchi T, Pham THM, Züttel A, Horike S.   +4 more
europepmc   +2 more sources

On the Use of Solomon Echoes in ²⁷ Al NMR Studies of Complex Aluminium Hydrides. [PDF]

ChemistryOpen
For two complex aluminium hydrides, the quadrupole coupling parameters of the 27Al nuclei are determined from static NMR spectra and compared with those obtained from MAS NMR spectra and from DFT‐GIPAW calculations based on structural data from diffraction methods.
Zibrowius B, Fischer M.
europepmc   +2 more sources

Crystal structure and synthesis of the bis(anthracene)dicuprate dianion as the dipotassium salt, [K(tetrahydrofuran)2]2[{Cu(9,10‐η2‐anthracene)}2], the first anionic arene complex of copper

Acta Crystallographica Section C, Volume 79, Issue 11, Page 456-463, November 2023., 2023
An unprecedented example of an anionic (arene)copper complex has been prepared and structurally characterized in the salt [K(THF)2]2[Cu2(anthracene)2] (THF is tetrahydrofuran), which contains the first homoleptic anthracene complex of a d‐ or f‐block metal bound only to the central ring of anthracene.Reactions of (tricyclohexylphosphane)copper(I ...
Victor G. Young Jr, William W. Brennessel, John E. Ellis   +2 more
wiley   +1 more source

First-principles calculations of the crystal structure, electronic structure, and thermodynamic stability of Be(BH4)2 [PDF]

, 2008
Alanates and boranates are intensively studied because of their potential use as hydrogen storage materials. In this paper, we present a first-principles study of the electronic structure and the energetics of beryllium boranate BeBH42. From total energy
Brocks, Geert, Setten, Michiel J. van, Wijs, Gilles A. de   +2 more
core   +2 more sources

Surface Reactions are Crucial for Energy Storage

CHIMIA, 2015
Reactions between gas molecules, e.g. H2 and CO2 and solids take place at the surface. The electronic states and the local geometry of the atomic arrangement determine the energy of the adsorbate, i.e.
Elsa Callini, Shunsuke Kato, Philippe Mauron, Andreas Züttel   +3 more
doaj   +1 more source

Duyuşsal Alan ve Duyuşsal Alan Taksonomileri

Anadolu Üniversitesi Eğitim Fakültesi Dergisi, 2022
Bu araştırma, duyuş, duyuşsal alan ve duyuşsal alan taksonomileri kuramsal çerçevede ele alınmış kuramsal derlemedir. Alanyazıdaki duyuşsal alan taksonomileri incelenerek, taksonomilerin birbirleriyle benzer ve ayrılan yönleri incelenmiş, duyuşsal alanın neleri kapsadığı ortaya çıkarılmaya çalışılmıştır. Sonuç olarak duyuşsal alanla ilişkilendirilen en
İbrahim KARAGÖL, Oktay Cem ADIGÜZEL
openaire   +2 more sources

Stable Mg2+ Dication Weakly Stabilized/Coordinated in Solution: Synthesis, Structure, Reactivity, and Use in Catalysis

Angewandte Chemie, Volume 137, Issue 26, June 24, 2025.
Stable Mg2+ dication stabilized only by weakly coordinating carborates was first prepared and structurally characterized as a soluble salt in organic solvents. Combined experimental and theoretical data provided valuable insights into its behavior/reactivity in solution.
Xuejuan Xu, Alain Chaumont, Christophe Gourlaouen, Satawat Tongdee, Sandip Munshi, Béatrice Jacques, Rudolf Wehmschulte, Samuel Dagorne   +7 more
wiley   +2 more sources

Low-Energy Polymeric Phases of Alanates

, 2012
Low-energy structures of alanates are currently known to be described by patterns of isolated, nearly ideal tetrahedral [AlH$_4$] anions and metal cations.
Amsler, Maximilian, Botti, Silvana, Goedecker, Stefan, Huan, Tran Doan, Marques, Miguel A. L., Willand, Alexander   +5 more
core   +2 more sources