Two-dimensional electronic systems in a quantizing magnetic field are of great interest when using quasiparticles with non-Bose and non-Fermi (anyon) statistics in solving problems of applied ...physics. The fractional quantum Hall effect states have so far been the only candidates for the role of quasiparticle systems with anyon statistics. Nonequilibrium macroscopic ensembles of neutral excitations in the 1/3 fractional quantum Hall effect are created to determine the statistical and thermodynamic properties of anyon systems and the applicability of anyons in solving technological tasks. It is found these ensembles have such long periods of relaxation they may be considered new quasi-equilibrium states of anyon matter.
The reaction of heterocyclic phosphine ligand, 1,3-di-
p
-tolyl-5-(5'-allyl-2'-ethoxybenzyl)-1,3-diaza-5-diazaphosphacyclohexane (L), containing a functional substituent at phosphorus, with ...(1,5-cyclooctadiene)dichloroplatinum(II) and nickel(II) chloride gave complexes PtCl
2
L
2
(
I
) and NiCl
2
L
2
(
II
), respectively, with the
cis-
and
trans
-configurations of the central ion. The structure of the complexes was determined by X-ray diffraction (CIF files CCDC no. 2097704 (
I
), 2097705 (
II
)).
New water-soluble copper(II) bis-N,O-chelate complexes Cu(L
2
)
2
Cl
2
(
I
), Cu
2
(L
1
)
2
Cl
4
(
II
), and Cu(L
1
)
2
Cl
2
CuCl
4
(
III
) (L
1
, L
2
= pyridyl-containing phospholane oxides) were ...prepared from N,O-ligands. The complexes were characterized by physicochemical methods (mass spectrometry, IR spectroscopy, elemental analysis, and X-ray diffraction (CIF files CCDC nos. 1976723 (
I
), 1976724 (
II
), and 1974303 (
III
)). The physicochemical properties of the products were studied and the molecular and crystal structures were established. The cytotoxicity against M-HeLa cancer cell lines and Chang liver normal cell lines was determined for the binuclear complex Cu
2
(L
1
)
2
Cl
4
.
N-pyridyl-containing cyclic aminomethylphosphines have been prepared via condensation of the corresponding bis(hydroxymethyl)arylphosphines with
p
-aminopyridine and
m
-aminomethylpyridine.
Transmission spectra of pressed microcrystalline α-lactose monohydrate samples have been measured by THz time-domain spectroscopy in the temperature range of existence of the solid phase (10–475 K). ...An analysis of the observed absorption lines using the model of classical oscillator have revealed complex temperature evolution of resonance eigenfrequencies and determined the range of existence of a phase of α-lactose monohydrate response. The obtained data can be used in practice in various fields of THz optics, including pharmacology, food industry, analytical chemistry, and biophotonics.
Novel 1,9-diaza-3,7,11,15-tetraphosphacyclohexadecanes with alkyl, arylalkyl, or heteroarylalkyl substituents at the endocyclic nitrogen atoms were synthesized by condensation of ...1,3-bis(phenylphosphino)propane, formaldehyde, and primary amines. The reactions are stereoselective and result in the isomer with the
RSSR
configuration of the phosphorus atoms as the major product. The 16-membered tetrakis(phosphine) ligands form stable neutral tetranuclear complexes with gold(I). In these complexes, the 16-membered cyclic ligands retain their free-state conformations and the configuration of the chiral phosphorus atoms.
The steric and electronic structures of 1,3-diaza-5-phoaphacyclohexane with the pyridyl substituent at the phosphorus atom and a series of model 1,3-diaza-5-phosphacyclohexanes (potential ligands for ...the synthesis of luminescent transition metal complexes) were studied using IR and UV spectroscopy combined with quantum chemical calculations. Relationships between the electronic structures, spectral characteristics, and donor—acceptor properties of the substituents were revealed. The relationships can further be used for the target synthesis of complexes with specified optical properties.
Pyridyl containing phospholanes became promising templates for construction of novel hemilabile ligands. Their N-H derivatives, namely phospholanopyridinium hydrochlorides, were firstly synthesized ...and utilized as P-monodentate ligands towards copper(I) iodide.
GRAPHICAL ABSTRACT
A series of new
N
,
O
-hybrid ligands was synthesized by oxidation of pyridyl-substituted phospholanes. These ligands were employed in the first synthesis of water-soluble mononuclear nickel(II) ...complexes NiL
2
(H
2
O)
2
(BF
4
)
2
and NiL
2
(MeCN)
2
(BF
4
)
2
. Physicochemical properties and crystalline structures of the synthesized compounds were thoroughly studied.
