Search results for "CHROMIUM"

The Ability of Water Hyacinth (Eichhornia crasipes Mart.) and Water Lettuce (Pistia stratiotes Linn.) for Reducing Pollutants in Batik Wastewater

2021

Batik produced by craftsmen is categorized as a small and medium industry. The problem of Batik production is less attention to the environment because the craftsmen lived in the middle of a residential area that has inexperience. One of less attention to the environment is no treatment of wastewater that reaches up to 95 % (61.9 L each cloth). Thus it polluted the river. This research aimed to treat the wastewater of Batik production by using phytoremediation. In this study, phytoremediation was carried out in three tanks in series using Eichhornia crassipes and Pistia stratiotes which are abundant in Indonesia. The treated wastewater was evaluated for its ammonia and chromium (Cr). The re…

Visualization of Moiré Magnons in Monolayer Ferromagnet

2023

| openaire: EC/H2020/788185/EU//E-DESIGN Two-dimensional magnetic materials provide an ideal platform to explore collective many-body excitations associated with spin fluctuations. In particular, it should be feasible to explore, manipulate, and ultimately design magnonic excitations in two-dimensional van der Waals magnets in a controllable way. Here we demonstrate the emergence of moiré magnon excitations, stemming from the interplay of spin-excitations in monolayer CrBr3 and the moiré pattern arising from the lattice mismatch with the underlying substrate. The existence of moiré magnons is further confirmed via inelastic quasiparticle interference, showing the appearance of a dispersion …

New charge transfer salts of two organic π-donors of the tetrathiafulvalene type with the paramagnetic [Cr(NCS)6]3- anion

2003

cited By 9; International audience; The electrochemical combination of the paramagnetic anion [Cr(NCS)6]3- with the organic π-donors bis(ethylenedithio)tetrathiafulvalene (ET) and 4,5-bis(2-hydroxyethylthio) -4′,5′-ethylenedithiotetrathiafulvalene (DHET-EDTTTF) leads to two new radical cation salts, namely (ET)4 [Cr(NCS 6]·PhCN 1 and (DHET-EDTTTF)2 (NEt4)[Cr(NCS)6] 2. Both have been characterized by X-ray crystallography, magnetic and resistivity measurements. The structure of 1 consists of alternating inorganic layers generated by the anions and organic layers in which the PhCN molecules are inserted; the organic sub-lattice is built up from four different ET units, three of them with a ch…

Spin Crossover and Long-Lived Excited States in a Reduced Molecular Ruby.

2020

Abstract The chromium(III) complex [CrIII(ddpd)2]3+ (molecular ruby; ddpd=N,N′‐dimethyl‐N,N′‐dipyridine‐2‐yl‐pyridine‐2,6‐diamine) is reduced to the genuine chromium(II) complex [CrII(ddpd)2]2+ with d4 electron configuration. This reduced molecular ruby represents one of the very few chromium(II) complexes showing spin crossover (SCO). The reversible SCO is gradual with T 1/2 around room temperature. The low‐spin and high‐spin chromium(II) isomers exhibit distinct spectroscopic and structural properties (UV/Vis/NIR, IR, EPR spectroscopies, single‐crystal XRD). Excitation of [CrII(ddpd)2]2+ with UV light at 20 and 290 K generates electronically excited states with microsecond lifetimes. This…

Improvement of Raman Spectra of SAPO-5 by Chromium(III)-Induced Luminescence Quenching

1995

CCDC 1402554: Experimental Crystal Structure Determination

2015

Related Article: Willian X. C. Oliveira, Cynthia L. M. Pereira, Carlos B. Pinheiro, Joan Cano, Francesc Lloret, Miguel Julve|2015|Chem.Commun.|51|11806|doi:10.1039/C5CC04285B

CCDC 173965: Experimental Crystal Structure Determination

2003

Related Article: G.Marinescu, R.Lecouezec, D.Armentano, G.De Munno, M.Andruh, S.Uriel, R.Llusar, F.Lloret, M.Julve|2002|Inorg.Chim.Acta|336|46|doi:10.1016/S0020-1693(02)00880-0

CCDC 169925: Experimental Crystal Structure Determination

2001

Related Article: B.Abouhamza, M.Ait Ali, S.Allaoud, O.Blacque, B.Frange, A.Karim|2001|Acta Crystallogr.,Sect.C:Cryst.Struct.Commun.|57|796|doi:10.1107/S0108270101006187

CCDC 1858307: Experimental Crystal Structure Determination

2018

Related Article: A.J. Peloquin, M.B. Smith, B.J. O'Connell, K.B. Ghiassi, G.J. Balaich, S.T. Iacono|2018|Acta Crystallogr.,Sect.E:Cryst.Commun.|74|1190|doi:10.1107/S2056989018010794

CCDC 1951481: Experimental Crystal Structure Determination

2020

Related Article: Badral Gansukh, Qiuyue Zhang, Zygmunt Flisak, Tongling Liang, Yanping Ma, Wen‐Hua Sun|2020|Appl.Organomet.Chem.|34|e5471|doi:10.1002/aoc.5471