Gas-Phase studies of valinomycin-alkali metal cation complexes: attachment rates and cation affinities

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

IRMPD action spectroscopy of alkali metal cation-cytosine complexes: effects of alkali metal cation size on gas phase conformation.

The gas-phase structures of alkali metal cation-cytosine complexes generated by electrospray ionization are probed via infrared multiple photon dissociation (IRMPD) action spectroscopy and theoretical calculations. IRMPD action spectra of five alkali metal cation-cytosine complexes exhibit both similar and distinctive spectral features over the range of ~1000-1900 cm(-1). The IRMPD spectra of t...

متن کامل

Alkali metal cation binding affinities of cytosine in the gas phase: revisited.

Binding of metal cations to the nucleobases can influence base pairing, base stacking and nucleobase tautomerism. Gas-phase condensation of dc discharge generated alkali metal cations and thermally vaporized cytosine (DC/FT) has been found to produce kinetically trapped excited tautomeric conformations of the M(+)(cytosine) complexes, which influences the threshold collision-induced dissociatio...

متن کامل

Alkali Metal Cation versus Proton and Methyl Cation Affinities: Structure and Bonding Mechanism

We have analyzed the structure and bonding of gas-phase Cl-X and [HCl-X](+) complexes for X(+)= H(+), CH3 (+), Li(+), and Na(+), using relativistic density functional theory (DFT). We wish to establish a quantitative trend in affinities of the anionic and neutral Lewis bases Cl(-) and HCl for the various cations. The Cl-X bond becomes longer and weaker along X(+) = H(+), CH3 (+), Li(+), and Na(...

متن کامل

Cation–π interactions in competition with cation microhydration: a theoretical study of alkali metal cation–pyrene complexes

Cation-π interactions were systematically investigated for the adsorption of H+ and alkali metal cations M+ to pyrene by means of Møller-Plesset perturbation theory (MP2) and density functional theory (DFT). The main aims were to determine the preferred adsorption sites and how the microhydration shell influences the adsorption process. The preferred adsorption sites were characterized in terms...

متن کامل

Alkali metal cation-ligand affinities: Basis set superposition correction for the Gaussian protocols

Related Articles Coarse-graining entropy, forces, and structures J. Chem. Phys. 135, 214101 (2011) Prospects for release-node quantum Monte Carlo J. Chem. Phys. 135, 184109 (2011) An efficient linear scaling procedure for constructing localized orbitals of large molecules based on the oneparticle density matrix J. Chem. Phys. 135, 134107 (2011) Dynamical regimes on the Cl + H2 collisions: Inela...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of the American Society for Mass Spectrometry

سال: 1994

ISSN: 1044-0305,1879-1123

DOI: 10.1016/1044-0305(94)85004-6