Journal of the American Chemical Society (J AM CHEM SOC)

Publisher: American Chemical Society; American Chemical Society; Marian S. Carson Collection (Library of Congress), American Chemical Society

Journal description

The Journal of the American Chemical Society, founded in 1879, is the flagship journal of the American Chemical Society and a highly esteemed journal in the field. This periodical is devoted to the publication of research papers in all fields of chemistry and publishes approximately 13,000 pages of new chemistry a year. Published weekly, JACS provides research crucial to the field of chemistry. The Journal of the American Chemical Society publishes articles, communications to the Editor, book reviews, and computer software reviews.

Current impact factor: 11.44

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 11.444
2012 Impact Factor 10.677
2011 Impact Factor 9.907
2010 Impact Factor 9.019
2009 Impact Factor 8.58
2008 Impact Factor 8.091
2007 Impact Factor 7.885
2006 Impact Factor 7.696
2005 Impact Factor 7.419
2004 Impact Factor 6.903
2003 Impact Factor 6.516
2002 Impact Factor 6.201
2001 Impact Factor 6.079
2000 Impact Factor 6.025
1999 Impact Factor 5.537
1998 Impact Factor 5.725
1997 Impact Factor 5.65
1996 Impact Factor 5.948
1995 Impact Factor 5.263
1994 Impact Factor 5.039
1993 Impact Factor 5.365
1992 Impact Factor 5.298

Impact factor over time

Impact factor
Year

Additional details

5-year impact 10.24
Cited half-life 7.70
Immediacy index 2.16
Eigenfactor 0.83
Article influence 2.99
Website Journal of the American Chemical Society website
Other titles Journal of the American Chemical Society, Review of American chemical research
ISSN 0002-7863
OCLC 1226990
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

American Chemical Society

  • Pre-print
    • Author cannot archive a pre-print version
  • Restrictions
    • Must obtain written permission from Editor
    • Must not violate ACS ethical Guidelines
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • If mandated by funding agency or employer/ institution
    • If mandated to deposit before 12 months, must obtain waiver from Institution/Funding agency or use AuthorChoice
    • 12 months embargo
  • Conditions
    • On author's personal website, pre-print servers, institutional website, institutional repositories or subject repositories
    • Non-Commercial
    • Must be accompanied by set statement (see policy)
    • Must link to publisher version
    • Publisher's version/PDF cannot be used
    • If mandated sooner than 12 months, must obtain waiver from Editors or use AuthorChoice
    • Reviewed on 07/08/2014
  • Classification
    ​ white

Publications in this journal

  • Garazi Talavera, Javier Peña, Manuel Alcarazo
    [Show abstract] [Hide abstract]
    ABSTRACT: The syntheses of imidazolium thiocyanates and imidazolium thioalkynes from dihalo(imidazolium) sulfuranes are reported and their reactivities as CN+ and RCC+ synthons evaluated, respectively. The easy and scalable preparation of these electrophilic reagents, their operationally simple handling, broad substrate scope, and functional group tolerance clearly illustrate the potential of these species to become a reference for the direct electrophilic cyanation and alkynylation of organic substrates.
    Journal of the American Chemical Society 07/2015; DOI:10.1021/jacs.5b05287
  • [Show abstract] [Hide abstract]
    ABSTRACT: The carbon–nitrogen bond of β-lactams is cleaved by palladium(0), and an alkene is intramolecularly inserted therein. The following reductive elimination produces nitrogen-containing benzo-fused tricycles in good to high yields.
    Journal of the American Chemical Society 06/2015; DOI:10.1021/jacs.5b05308
  • Yue Deng, Christopher Eames, Jean-Noël Chotard, Fabien Lalère, Vincent Seznec, Steffen Emge, Oliver Pecher, Clare P. Grey, Christian Masquelier, M. Saiful Islam
    [Show abstract] [Hide abstract]
    ABSTRACT: Solid electrolytes that are chemically stable and have a high ionic conductivity would dramatically enhance the safety and operating lifespan of rechargeable lithium batteries. Here, we apply a multi-technique approach to the Li-ion conducting system (1-z)Li4SiO4–(z)Li3PO4 with the aim of developing a solid electrolyte with enhanced ionic conduc-tivity. Previously unidentified superstructure and immiscibility features in high purity samples are characterized by X-ray and neutron diffraction across a range of compositions (z = 0.0 to 1.0). Ionic conductivities from AC impedance meas-urements and large-scale molecular dynamics (MD) simulations are in good agreement, showing very low values in the parent phases (Li4SiO4 and Li3PO4), but orders of magnitude higher conductivities (10-3 S/cm at 573 K) in the mixed compositions. The MD simulations reveal new mechanistic insights in the mixed Si/P compositions in which Li ion con-duction occurs through 3D pathways and a cooperative interstitial mechanism; such correlated motion is a key fac-tor in promoting high ionic conductivity. Solid state 6Li, 7Li and 31P NMR experiments reveal enhanced local Li-ion dynamics and atomic disorder in the solid solutions, which are correlated to the ionic diffusivity. These unique insights will be useful for developing strategies to optimize the conductivity in this system and to identify next-generation solid electrolytes.
    Journal of the American Chemical Society 06/2015; DOI:10.1021/jacs.5b04444
  • Journal of the American Chemical Society 06/2015; DOI:10.1021/jacs.5b05202
  • [Show abstract] [Hide abstract]
    ABSTRACT: Air-stable and homogeneous gold nanoparticles (AuNPs, 1a–5a) ligated by various secondary phosphine oxides (SPOs), [R1R2P(O)H] (R1 = Naph, R2 = tBu, L1; R1 = R2 = Ph, L2; R1 = Ph, R2 = Naph, L3; R1 = R2 = Et, L4; R1 = R2 = Cy, L5; R1 = R2 = tBu, L6), with different electronic and steric properties were synthesized via NaBH4 reduction of the corresponding Au(I)–SPO complex. These easily accessible ligands allow the formation of well dispersed and small nanoparticles (size 1.2–2.2 nm), which were characterized by the use of a wide variety of techniques, such as transmission electron microscopy, thermogravimetric analysis, UV–vis, energy-dispersive X-ray, X-ray photoelectron spectroscopy (XPS), attenuated total reflectance Fourier transform infrared spectroscopy (ATR FT-IR), and cross polarization magic angle spinning (CP MAS) NMR spectroscopy. A pronounced ligand effect was found, and CP MAS NMR experiments enabled us to probe important differences in the polarity of the P–O bond of the SPOs coordinated to the nanoparticle surface depending on the type of substituents in the ligand. AuNPs containing aryl SPOs carry only SPO anions and are highly selective for aldehyde hydrogenation. AuNPs of similar size made with alkyl SPOs contain also SPOH, hydrogen bonded to SPO anions. As a consequence they contain less Au(I) and more Au(0), as is also evidenced by XPS. They are less selective and active in aldehyde hydrogenation and now show the typical activity of Au(0)NPs in nitro group hydrogenation.
    Journal of the American Chemical Society 06/2015; 137(24):7718-7727. DOI:10.1021/jacs.5b02802
  • [Show abstract] [Hide abstract]
    ABSTRACT: Odorant Receptor (OR) genes and proteins represent more than 2% of our genome and 4% of our proteome and constitute the largest sub-group of G Protein-Coupled Receptors (GPCRs). The mechanism underlying OR activation remains poorly understood, as they do not share some of the highly conserved motifs critical for activation of non-olfactory GPCRs. By combining site-directed mutagenesis, heterologous expression, and molecular dynamics simulations that capture the conformational change of constitutively active mutants, we tentatively identified crucial residues for the function of these receptors using the mouse MOR256-3 (Olfr124) as a model. The toggle-switch for sensing agonists involves a highly conserved tyrosine residue in helix VI. The ionic-lock is located between the ‘DRY’ motif in helix III and a positively charged ‘R/K’ residue in helix VI. This study provides an unprecedented model that captures the main mechanisms of odorant receptor activation.
    Journal of the American Chemical Society 06/2015; DOI:10.1021/jacs.5b04659
  • Journal of the American Chemical Society 06/2015; DOI:10.1021/jacs.5b05100
  • [Show abstract] [Hide abstract]
    ABSTRACT: Boryl ligands hold promise in catalysis due to their very high electron-donating property. In this communication double N,B-type boryl anions were designed as bidentate ligands to promote sp 2 C-H borylation reaction. A symmetric pyridine-containing tetraaminodiborane(4) compound (1) was readily prepared as the ligand precursor that could be used, in combination with [Ir(OMe)(COD)]2 , to in situ generate a highly active catalyst for a broad range of (hetero)arene substrates including highly electron-rich and/or sterically hindered ones. This work provides the first example of a bidentate boryl ligand in supporting homogeneous organometallic catalysis.
    Journal of the American Chemical Society 06/2015; DOI:10.1021/jacs.5b05252
  • [Show abstract] [Hide abstract]
    ABSTRACT: The self-assembly of multiple molecular components into complex supramolecular architectures is ubiquitous in nature and constitutes one of the most powerful strategies to fabricate multifunctional nanomaterials making use of the bottom-up approach. When spatial confinement in two-dimensions on a solid substrate is employed, this approach can be exploited to generate periodically ordered structures from suitably designed molecular tectons. In this manuscript we demonstrate that physisorbed directional periodic arrays of monometallic or hetero bimetallic coordination polymers can be generated on HOPG surface by combinations of suitably designed directional organic tecton or metallatecton based on a porphyrin or Ni(II) metallaporphyrin backbone bearing both a pyridyl and a terpyridyl units acting as coordinating sites for CoCl2. The periodic architectures were visualized at the solid/liquid interface with a sub-molecular resolution by scanning tunneling microscopy (STM) and corroborated by combined density functional and time-dependent density functional theory (DFT and TD-DFT) calculations. The capacity to nanopattern the surface for the first time with two distinct metallic centers exhibiting different electronic and optical properties is a key step towards the bottom-up construction of robust multicomponent, thus, multifunctional molecular nanostructures and nanodevices.
    Journal of the American Chemical Society 06/2015; DOI:10.1021/jacs.5b02283
  • [Show abstract] [Hide abstract]
    ABSTRACT: The generation of single-layer 2-dimensional (2D) nanosheets has been challenging, especially in solution-phase, since it requires highly anisotropic growth processes that promote exclusive planar directionality during nanocrystal formation. In this study, we discovered that such selective growth pathways can be achieved by modulating the binding affinities of coordinating capping ligands to the edge facets of 2D layered transition-metal chalcogenides (TMCs). Upon changing the functional groups of the capping ligands from carboxylic acid to alcohol and amine with accordingly modulated binding affinities to the edges, the number of layers of nanosheets is controlled. Single-layer MSe2 (M = Mo, W) TMC nanosheets are obtained with the use of oleic acid, while multilayer nanosheets are formed with relatively strong binding ligands such as oleyl alcohol and oleylamine. With the choice of appropriate capping ligands in the 2D anisotropic growth regime, our solution-based synthetic method can serve a new guideline for obtaining single-layer TMC nanosheets.
    Journal of the American Chemical Society 05/2015; 137(23):accepted. DOI:10.1021/jacs.5b02772
  • [Show abstract] [Hide abstract]
    ABSTRACT: A novel microporous aluminoborate, denoted as PKU-3 was prepared by the boric acid flux method. The structure of PKU-3 was determined by combining the rotation electron diffraction and synchrotron powder X-ray diffraction data with well resolved ordered Cl- ions in the channel. Composition and crystal structure analysis showed that there are both proton and chlorine ions in the channels. Part of these protons and chlorine ions can be washed away by basic solutions to activate the open pores. The washed PKU-3 can be used as an efficient catalyst in the Strecker reaction with yields higher than 90%.
    Journal of the American Chemical Society 05/2015; 137(22). DOI:10.1021/jacs.5b03685