ライフサイエンスコーパス: chalcogen

1 al formula ABi(3)Q(5) (A = alkali metal; Q = chalcogen).

2 derivative, has wave function density on the chalcogen.

3 y is not known between alkenes and the heavy chalcogens.

4 s for TMDs in bottom-up synthesis: metal and chalcogen adsorption/desorption/diffusion on substrate a

5 d between 1.51 and 1.93 eV through metal and chalcogen alloying, correlating the compositional modula

6 those we recently obtained with its lighter chalcogen analogue, 9-triptycenesulfenic acid (RSOH).

7 apolated from the behaviour of their lighter chalcogen analogues (sulfur and selenium).

8 and Cd-EPh bond lengths is a function of the chalcogen and increases in the sequence S (0.010 A) < Se

9 dicyclohexyl derivatives, independent of the chalcogen and the nitrogen substituents.

10 It was found that 1,2-migration of chalcogens and halogens predominantly proceeds via forma

11 onic liquids promotes fast reactions between chalcogens and various metal powders upon microwave heat

12 here M is a transition metal, E represents a chalcogen, and tmeda is N,N,N',N'-tetramethyl-ethylenedi

13 ch interactions in the second- and third-row chalcogens are less well-understood and have generated s

14 ganometallic precursors to the corresponding chalcogens at standard temperature and pressure and neut

15 indicate that by increasing the size of the chalcogen atom (S < Se < Te), polymer band gaps are narr

16 have significant charge transfer between the chalcogen atom and the internal oxygen atom of the perox

17 (E)(NR2)3](-) series, which decreases as the chalcogen atom becomes heavier.

18 copper and nickel ions increased moving the chalcogen atom from O to Se.

19 SOMO show increasing electron density on the chalcogen atom on going from S to Se to Te.

20 Removal of one chalcogen atom via reaction with Et3P, or Et3P and Hg, a

21 totally encapsulates the two central Er with chalcogen atoms (4 S, 4 Se) and excludes neutral THF don

22 or Se) and the peri-interaction between two chalcogen atoms (chalcogen bond) are important for the d

23 unique combination of transition metals and chalcogen atoms along with controlling their properties

24 rence in reactivity of mu(1)- and mu(2)-type chalcogen atoms attached to the metal was established an

25 Electron-deficient heavy chalcogen atoms contain Lewis acidic sigma-holes which a

26 Changing the chalcogen atoms in the aromatic bridges gradually increa

27 nces the local electronic environment of the chalcogen atoms in the mechanically bonded rotaxane bind

28 lecules through incorporation of polarizable chalcogen atoms into terminal groups, while controlling

29 alized surface states enveloping the surface chalcogen atoms of NP, transition metal, and p-orbitals

30 l groups that are covalently attached to the chalcogen atoms of the transition metal dichalcogenide.

31 , by (1)H NMR and DFT calculations, that the chalcogen atoms oriented within the macrocycle cavity ar

32 = MeC(N(i)Pr)2) (2), undergoes insertion of chalcogen atoms resulting in a series of thorium chalcog

33 iting the NMR-active nuclei of the ChB-donor chalcogen atoms, heteronuclear (77)Se and (125)Te NMR we

34 that in this heterostructure with dissimilar chalcogen atoms, the electronic structures of WSe2 and M

35 undreds of metal atoms, being bridged by the chalcogen atoms.

36 A series of new 2,4-diaryl-1,3-chalcogen azoles having pentafluorosulfanyl SF5 function

37 amide, and 2,4-diarylpentafluorosulfanyl-1,3-chalcogen azoles reveal that the selenoamide and thioami

38 The 2,4-diarylpentafluorosulfanyl-1,3-chalcogen azoles show the newly formed five-membered N(1

39 e cases of 2,4-diarylpentafluorosulfanyl-1,3-chalcogen azoles.

40 Powders of a Sn2S3 chalcogen-based aerogel (chalcogel) were combined with p

41 of them, in the current work, nanostructured chalcogen-based aerogels called chalcogels are shown to

42 However, current chalcogen-based conformational lock strategies for organ

43 s via a catalytic hetero-ene reaction with a chalcogen-based oxidant.

44 3 (4X21) reveals an unusual bivalent halogen/chalcogen bond donated by the ligand and the back-pocket

45 ng a linear free energy relationship between chalcogen bond donor ability and calculated electrostati

46 ond leads to elongation of the C-I bond, the chalcogen bond facilitates the transfer of more electron

47 te formation versus the BDE of the pnictogen-chalcogen bond in the transfer reagent.

48 A secondary effect of the S...O chalcogen bond is elongation of the S-F bonds.

49 eri-interaction between two chalcogen atoms (chalcogen bond) are important for the deiodination react

50 pical, the molecule is stabilized by a S...O chalcogen bond, sometimes augmented by CH...F or CH...O

51 and diaryl dichalcogenides underwent carbon-chalcogen bond-forming reaction to give unsymmetrical di

52 he residue fails to adapt being fixed by the chalcogen bond.

53 be responsible for the formation of the aryl-chalcogen bond.

54 found to be governed by the nature of metal-chalcogen bond.

55 active supramolecular interactions, known as chalcogen bonding (ChB), with Lewis bases.

56 bstantial evidence supports the existence of chalcogen bonding in the solid state, quantitative data

57 participation of the benzotelluradiazoles in chalcogen bonding interactions was probed by UV-vis, (1)

58 Chalcogen bonding is the noncovalent interaction between

59 ement with the experimental free energies of chalcogen bonding.

60 lar orbital energies was consistent with the chalcogen-bonding interactions being dominated by n -->

61 Although the prevalence and applications of chalcogen-bonding interactions continues to develop, deb

62 The strongest chalcogen-bonding interactions were found to be at least

63 a quantitative experimental investigation of chalcogen-bonding interactions.

64 ile with elemental chalcogens to form carbon-chalcogen bonds and likewise reacts with PCl(3) to furni

65 For example, C-chalcogen bonds are excellent sigma acceptors at the car

66 Such interactions have since become known as chalcogen bonds by analogy to hydrogen and halogen bonds

67 hitectures as a privileged motif to engineer chalcogen bonds into functional systems, complementary i

68 Trends in the free energy of chalcogen bonds upon variation of the donor, acceptor an

69 ctronic structure and nature of the actinide-chalcogen bonds were investigated with (77)Se and (125)T

70 d to recent efforts to integrate halogen and chalcogen bonds, the unorthodox counterparts of hydrogen

71 ence between two types of the intramolecular chalcogen bonds, viz.

72 nthetic anion transporters that operate with chalcogen bonds.

73 of [H2S2(+)]2, the (4c-6e) bond between the chalcogen centers is a good description of this dimer.

74 ion metal dichalcogenides (TMDCs); i.e., the chalcogen-chalcogen bonds holding the layers are progres

75 gth of halogen bond but also facilitates the chalcogen-chalcogen interactions.

76 lar orbital irrespective of whether a direct chalcogen...chalcogen or chalcogen...H-C contact was mad

77 Se2(1-y), exhibiting fully tunable metal and chalcogen compositions that span the MoSe2-WSe2 and WS2-

78 The chalcogen-containing pyridoxines could also mimic the ac

79 MDs), including dangling bonds at the edges, chalcogen deficiencies in the bulk, and charges in the s

80 r selectivity indexes when compared with the chalcogen-derivatives and cisplatin.

81 Here, we focus on the chalcogen-derived states.

82 irst lanthanide cluster to contain internal, chalcogen encapsulated Ln.

83 e carbon end but poor sigma acceptors at the chalcogen end.

84 nion recognition behavior in comparison with chalcogen-free host analogues.

85 of whether a direct chalcogen...chalcogen or chalcogen...H-C contact was made.

86 Variation of the chalcogen heteroatom was seen to affect the photophysica

87 o incorporate selected metallic elements and chalcogens into a stable solution as metal chalcogenide

88 ergies that depend on the selection of metal/chalcogen ion composition.

89 unprecedented selectivity over the metal and chalcogen ions present within a stable octanuclear frame

90 rb via Ch-H dissociation at 310 K, where Ch (chalcogen) is either S or O.

91 t interaction between C-Si or C-Sn bonds and chalcogen lone pairs.

92 nd grown TMD surface, TMD stacking sequence, chalcogen/metal ratio, flake edge diffusion and vacancy

93 The chalcogen modification of CdS was achieved by using a mi

94 Chalcogen-modified NP can be considered as a new member

95 provide convincing evidence for the actinide-chalcogen multiple bonding in the title complexes.

96 ane fatty acid synthase via use of the onium chalcogens of AdoMet as methyl donors.

97 irrespective of whether a direct chalcogen...chalcogen or chalcogen...H-C contact was made.

98 , to multi-component compounds of metals and chalcogens or metalloids, doped fullerenes and organic c

99 electrodes to the aromatic pi-system via the chalcogen p lone pairs, and greater overlaps among these

100 behaviour to the strong coupling between the chalcogen p orbitals and the intermetal t2g-bonding orbi

101 oderate temperature of 400 degrees C using a chalcogen partial pressure <6 x 10(-5) atm.

102 y driven as it aims for the formation of the chalcogen phase characterized by the lower solubility un

103 to the formation of the binary coinage metal chalcogen phases, but do not collapse into the solid M(2

104 n, when found also on other groups of atoms (chalcogens, pnicogens, tetrels and aerogens), it resulte

105 Refinements of the special chalcogen positions revealed a change in bonding angles,

106 ement are due to the abnormal changes in the chalcogen ratio (Se:Te) during the film growth and that

107 X2, where M is a transition metal and X is a chalcogen, represent a diverse and largely untapped sour

108 ion of a halogen bond between the iodine and chalcogen (S or Se) and the peri-interaction between two

109 nductors having either pnictogens (P, As) or chalcogen (Se, Te) of the type AFFeAs (A = alkaline-eart

110 ore the 5-(methylchalcogeno)-1,2,3-triazole (chalcogen = Se, Te) motif as a novel ChB donor for anion

111 The relative photodynamic activities of the chalcogen series were evaluated against a panel of proto

112 Oxidation with elemental chalcogens showed the reversible nature of the ligand-me

113 he mixed Se/Te analogue, the Te occupies the chalcogen sites that are on the "surface" of the layers.

114 iMe3) in THF results in the isolation of the chalcogen-substituted uranyl analogues [Cp*2Co][U(O)(E)(

115 tals of organic chromophores, we utilize the chalcogen (sulfur) sites on the NP surface.

116 een an electron-deficient, covalently bonded chalcogen (Te, Se, S) and a Lewis base.

117 e-shared distorted FeX(4) (X = pnictogen and chalcogen) tetrahedra and these tetrahedral layers are r

118 )](-) reacts as a nucleophile with elemental chalcogens to form carbon-chalcogen bonds and likewise r

119 ere we study the interaction between air and chalcogen vacancies (V(X)), the most typical defects in

120 e periodic trend for hyperconjugation in the chalcogens, which reflect a decreasing n(x)-->sigma(C-H(

121 metry-free T/E cluster core (T = tetrel, E = chalcogen) with the attachment of ligands that allow pi