ライフサイエンスコーパス: hydronium

1 readily transferred to form dihydrogen with hydronium.

2 terconversion between water and hydroxide or hydronium.

3 re pronounced for the hydroxide than for the hydronium.

4 t from the case of the (localized) classical hydronium.

5 adsorbed water to the electrode surface, and hydronium.

6 is by autoionization-generated hydroxide and hydronium, a process known to have an activation free en

7 The existence of these hydronium amphiphilic pairs is further supported by a Ca

8 lts provide rare examples of water-insoluble hydronium and ammonium salts.

9 onsequences of this feature is that both the hydronium and hydroxide ion are decorated with proton wi

10 s that successfully prevent recombination of hydronium and hydroxide ions at 3-coordinate bridgehead

11 neutral pH (i.e., under conditions in which hydronium and hydroxide ions do not participate directly

12 and therefore low populated species such as hydronium and hydroxide ions in water.

13 We report the vibrational spectra of the hydronium and methyl-ammonium ions captured in the C3v b

14 an exist in three protonation states (water, hydronium, and hydroxide); as a result, an alternative t

15 Molecular models for hydronium binding to E(1) versus E(2)-P predict outward

16 s E(2)-P predict outward displacement of the hydronium bound between Asp824, Glu820, and Glu795 by th

17 able AspH(0)-H2O(0)-Arg(+) interactions with hydronium but unfavorable Asp(-)-X(-)/X(+)-Arg(+) intera

18 free energy profiles between the proton and hydronium cases indicates that the magnitude of the free

19 It is also found that the hydronium cation pairs are stabilized by a delocalizatio

20 hanism, a model "classical" charge localized hydronium cation that exhibits no Grotthuss shuttling, a

21 ss shuttling excess proton and the classical hydronium cation.

22 At 0.43-0.85 M concentrations, hydronium cations are found to form unusual cation pairs

23 is consistent with our earlier finding that hydronium cations can have an "amphiphilic" character du

24 fic distances from the substrate with a 1 eV hydronium (D(3)O(+)) or Cs(+) ion beam.

25 the existence of hitherto unexpected cyclic hydronium di-cations trapped within crystal structures.

26 By complexing the solvated hydronium "Eigen" cluster [D3O(+)(D2O)3] with increasing

27 Both hydronium (H(3)O(+)) and hydroxide (OH(-)) ions were fou

28 shuttling)--H(+), a classical (nonshuttling) hydronium--H(3)O(+), and a potassium cation--K(+).

29 is necessary to reduce clustering of primary hydronium (H3O(+)) and product ions with water molecules

30 n of a minority of pH-governing ions such as hydronium (H3O(+)) ions, thus inducing pH variations acr

31 nel, a proton, which is initially present as hydronium (H3O+), rapidly forms a strong hydrogen bond w

32 r dynamics studies were carried out with the hydronium in either the center of a gramicidin monomer o

33 ween the metal hydride and a proton from the hydronium in solution.

34 The hydroniums in direct contact with n-decane have a reduce

35 However, the hydroniums in the second layer of water molecules are mo

36 tling) proton and a classical (nonshuttling) hydronium ion along two aquaporin channels, Aqp1 and Glp

37 tion of ring-substituted -methoxystyrenes by hydronium ion and by carboxylic acids to form the corres

38 h cases the average O-O distance between the hydronium ion and its nearest neighbor water molecule wa

39 used by the enhanced association between the hydronium ion and the alcohol, as well as a higher intri

40 Subsequently, a bonded complex of a hydronium ion and the nearest backbone phosphate group f

41 tate, MV(2+) reacts with water to generate a hydronium ion approximately 1.5 ps after excitation.

42 ther water to stabilize the bridge through a hydronium ion as well as to produce the hydroxide anion

43 Here we show that hydronium ion catalysis, exemplified by intramolecular d

44 The correctness of the hydronium ion formulation in crystalline H(3)O(+)A(-) sa

45 The presence of the hydronium ion in the channel also inhibits to some degre

46 The electrode's response to the hydronium ion is a particular concern because its voltam

47 n of the scissile peptide bond nitrogen by a hydronium ion is an important first step in the reaction

48 which water is inaccessible or hydroxide or hydronium ion is not even momentarily stable.

49 After the hydronium ion is produced, the corresponding hydroxide i

50 Although the hydronium ion itself did not cross the channel gate by t

51 ntagonal dodecahedron H-bonded cage with the hydronium ion residing on the surface.

52 We have characterized the binding of hydronium ion within these host molecules and have synth

53 The effects of the hydronium ion, H(3)0+, on the structure of the ion chann

54 Salts of the C(3v) symmetric hydronium ion, H(3)O(+), have been obtained in the weakl

55 ere found to interact with the charge on the hydronium ion, helping in its stabilization.

56 clic polyether hosts form 1:1 complexes with hydronium ion, producing large enhancements in luminesce

57 ing to be converted into an ionically bonded hydronium ion, while a second water molecule bonded to M

58 The hydronium ion-catalyzed hydrolyses of 5-methoxyindene 1,

59 rst order in nitrite, carbamate species, and hydronium ion.

60 n nitrite, piperazine carbamate species, and hydronium ion.

61 c electrolyte, which can only be ascribed to hydronium-ion intercalation.

62 l discharge of water (alkaline solutions) or hydronium ions (acid solutions).

63 ignificantly enhance the association between hydronium ions and alcohols in a steric environment rese

64 The H(+),K(+)-ATPase pumps protons or hydronium ions and is responsible for the acidification

65 k that is collapsed owing to the presence of hydronium ions and weak base cations.

66 This confirms that hydronium ions are in exchange with protons in the His37

67 We demonstrate for the first time that hydronium ions can be reversibly stored in an electrode

68 tion reaction, a real-time monitoring of the hydronium ions concentration, a byproduct of this reacti

69 Here we demonstrate that hydronium ions confined in the nanopores of zeolite HBEA

70 s initiated by electrogenerated hydroxide or hydronium ions in water under reductive and oxidative co

71 ohexanol at a rate significantly higher than hydronium ions in water.

72 The higher activity of hydronium ions in zeolites is caused by the enhanced ass

73 Acid catalysis by hydronium ions is ubiquitous in aqueous-phase organic re

74 ecular dynamics simulations of hydroxide and hydronium ions near a hydrophobic interface, indicating

75 The catalytically active hydronium ions originate from Bronsted acid sites (BAS)

76 We found clear evidence that hydronium ions prefer to emerge at interfaces.

77 ophobic paste environment, to the barrier to hydronium ions provided by the pasting liquid and to dec

78 roxide and hydronium ions, (2) hydroxide and hydronium ions rapidly convert donor aldehyde or ketone

79 All hydronium ions were equally active for the acid-catalyze

80 Hydronium ions were soft-landed at 1 electron volt on co

81 ionization generates catalytic hydroxide and hydronium ions, (2) hydroxide and hydronium ions rapidly

82 ts of approximately 2400 water molecules, 22 hydronium ions, and 10 chloride and contains a single Su

83 at hydrogen ions do not pass through M(2) as hydronium ions, but instead must interact with titratabl

84 urface potential leads to an accumulation of hydronium ions, H(3)O(+), in the electrical double layer

85 ion and ejection of excess charge, primarily hydronium ions.

86 on-specific effects are here overshadowed by hydronium ions.

87 c protons both able to generate the hydrated hydronium ions.

88 by forming a narrow double-charge layer with hydronium ions.

89 The profile for the classical hydronium is quantitatively intermediate between those o

90 These sites might stabilize hydronium-like species formed as protons diffuse through

91 pOHB proceeds through the direct reaction of hydronium or hydroxide with the enzyme-ligand complex an

92 oxygen atoms, followed by facile hydroxide, hydronium or water addition.

93 l oxygens for RNase A to values observed for hydronium- or hydroxide-catalyzed reactions indicate a l

94 ns of 1.68 and 3.26 M, the abundance of such hydronium pairs decreases, and the analysis of the radia

95 channel backbone was observed for different hydronium positions, which were most apparent when the h

96 Hydronium protonation of the hydride on the Mo site is 2

97 Positive ionization with hydronium reactant ions produced only fragments of the T

98 As these unprecedented hydronium species are stabilized by the crystal structur

99 eory (DFT) calculations, which confirmed the hydronium storage in PTCDA.

100 The lattice expansion upon hydronium storage was theoretically explored by first-pr

101 ), which may include a minor contribution of hydronium storage, a good rate capability by retaining 7

102 We find these doubly charged cyclic hydronium structures to be energetically stable and, as

103 ron is incrementally pulled from the central hydronium to a neighboring water molecule.

104 rbonyl groups are well situated to stabilize hydronium via second-shell interactions involving bridgi

105 positions, which were most apparent when the hydronium was within the monomer.

106 Comparison to the spectra of isolated hydronium, zundel, or eigen ions reveals the inductive e