bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis, Characterization, and Electrochemistry of the Manganese(I) Complexes of meso‐Substituted [14]Tribenzotriphyrins(2.1.1)
Authors: Xue Zhaoli , Wang Yemei , Mack John , Zhu Weihua , Ou Zhongping 
Published: November 2014

AbstractMetalation of 6,13,20,21‐tetraaryl‐22H‐[14]tribenzotriphyrins(2.1.1) (TriP, 1 a–d) with [Mn(CO)5Br] provided MnI tricarbonyl complexes of [14]tribenzotriphyrins(2.1.1) 2 a–d in 85–93 % yield. The complexes were characterized by mass spectrometry and UV/Vis absorption, IR, and NMR spectroscopy. Single‐crystal X‐ray analyses revealed that 2 b and 2 c adopt bowl‐shaped conformations. The redox properties of [(TriP)MnI(CO)3] (2 a–d) were studied by cyclic voltammetry. Each compound undergoes two reversible one‐electron reductions to form a porphyrin π anion radical and a dianion in CH2Cl2. Two oxidation waves were observed, the first of which corresponds to a metal‐centered electron‐transfer process. The redox potentials of 2 a–d are consistent with the optical spectroscopic data and the relatively narrow HOMO–LUMO gaps that were predicted in DFT calculations. The optical spectra can be assigned by using Michl’s perimeter model. TDDFT calculations predict the presence of several metal‐to‐ligand charge‐transfer bands in the L‐band region between 500 and 700 nm.
A New Concept for Obtaining SnO2 Fiber‐in‐Tube Nanostructures with Superior Electrochemical Properties
Authors: Hong Young Jun , Yoon Ji‐Wook , Lee Jong‐Heun , Kang Yun Chan 
Published: November 2014

AbstractTin oxide (SnO2) nanotubes with a fiber‐in‐tube structure have been prepared by electrospinning and the mechanism of their formation has been investigated. Tin oxide‐carbon composite nanofibers with a filled structure were formed as an intermediate product, which were then transformed into SnO2 nanotubes with a fiber‐in‐tube structure during heat treatment at 500 °C. Nanofibers with a diameter of 85 nm were found to be located inside hollow nanotubes with an outer diameter of 260 nm. The prepared SnO2 nanotubes had well‐developed mesopores. The discharge capacities of the SnO2 nanotubes at the 2nd and 300th cycles at a current density of 1 A g−1 were measured as 720 and 640 mA h g−1, respectively, and the corresponding capacity retention measured from the 2nd cycle was 88 %. The discharge capacities of the SnO2 nanotubes at incrementally increased current densities of 0.5, 1.5, 3, and 5 A g−1 were 774, 711, 652, and 591 mA h g−1, respectively. The SnO2 nanotubes with a fiber‐in‐tube structure showed superior cycling and rate performances compared to those of SnO2 nanopowder. The unique structure of the SnO2 nanotubes with a fiber@void@tube configuration improves their electrochemical properties by reducing the diffusion length of the lithium ions, and also imparts greater stability during electrochemical cycling.
Glucose‐ and Cellulose‐Derived Ni/C‐SO3H Catalysts for Liquid Phase Phenol Hydrodeoxygenation
Authors: Kasakov Stanislav , Zhao Chen , Baráth Eszter , Chase Zizwe A. , Fulton John L. , Camaioni Donald M. , Vjunov Aleksei , Shi Hui , Lercher Johannes A. 
Published: November 2014

AbstractSulfonated carbons were explored as functionalized supports for Ni nanoparticles to hydrodeoxygenate (HDO) phenol. Both hexadecane and water were used as solvents. The dual‐functional Ni catalysts supported on sulfonated carbon (Ni/C‐SO3H) showed high rates for phenol hydrodeoxygenation in liquid hexadecane, but not in water. Glucose and cellulose were precursors to the carbon supports. Changes in the carbons resulting from sulfonation of the carbons resulted in variations of carbon sheet structures, morphologies and the surface concentrations of acid sites. While the C‐SO3H supports were active for cyclohexanol dehydration in hexadecane and water, Ni/C‐SO3H only catalysed the reduction of phenol to cyclohexanol in water. The state of 3–5 nm grafted Ni particles was analysed by in situ X‐ray absorption spectroscopy. The results show that the metallic Ni was rapidly formed in situ without detectable leaching to the aqueous phase, suggesting that just the acid functions on Ni/C‐SO3H are inhibited in the presence of water. Using in situ IR spectroscopy, it was shown that even in hexadecane, phenol HDO is limited by the dehydration step. Thus, phenol HDO catalysis was further improved by physically admixing C‐SO3H with the Ni/C‐SO3H catalyst to balance the two catalytic functions. The minimum addition of 7 wt % C‐SO3H to the most active of the Ni/C‐SO3H catalysts enabled nearly quantitative conversion of phenol and the highest selectivity (90 %) towards cyclohexane in 6 h, at temperatures as low as 473 K, suggesting that the proximity to Ni limits the acid properties of the support.
The First 3‐Connected SrSi2‐Type 3D Chiral Framework Constructed from {Ni6PW9} Building Units
Authors: Li Xin‐Xiong , Fang Wei‐Hui , Zhao Jun‐Wei , Yang Guo‐Yu 
Published: November 2014

AbstractA novel 3‐connected SrSi2‐type 3D chiral framework constructed from hexa‐NiII‐cluster‐substituted polyoxometalate (POM) units [Ni(enMe)2]3[WO4]3[Ni6(enMe)3(OH)3PW9O34]2⋅9H2O (1) (enMe=1,2‐diaminopropane) has been made from a hydrothermal synthetic method. This POM represents the first 3D framework based on {Ni6PW9} units and {WO4} connectors.
Catalysis by Aluminum(III) Complexes of Non‐Innocent Ligands
Authors: Berben Louise A. 
Published: November 2014

AbstractNon‐Innocent ligand complexes of aluminum are described in this Concept article, beginning with a discussion of their synthesis, and then structural and electronic characterization. The main focus concerns the ability of the ligands in these complexes to mediate proton transfer reactions. As examples, aluminum–ligand cooperation in the activation of polar bonds is described, as is the importance of hydrogen bonding to stabilization of a transition state for β‐hydride abstraction. Taken together these reactions enable catalytic processes such as the dehydrogenation of formic acid.
Simple and Versatile Molecular Donors for Organic Photovoltaics Prepared by Metal‐Free Synthesis
Authors: Diac Andreea , Demeter Dora , Allain Magali , Grosu Ion , Roncali Jean 
Published: November 2014

AbstractDonor–acceptor molecules (D‐π‐A) built by connecting a diphenylhydrazone block to a dicyanovinyl acceptor group via various thiophene‐based π‐conjugating spacers (1–5) were synthesized from mono‐ or dialdehydes by a simple metal‐free procedure. Cyclic voltammetry and UV/Vis absorption spectroscopy show that the extension and/or increase of the donor strength of the spacer produces a decrease of the HOMO and LUMO energy level, a red shift of the absorption spectrum and an increase of the molecular absorption coefficient. Compared to solutions, the optical spectra of spin‐cast thin films of compounds 1–3 show a broadening and red shift of the absorption bands, consistent with the formation of J‐aggregates. In contrast the blue shift observed for the EDOT‐containing compounds 4 and 5 suggests the presence of H‐aggregates. Solution‐cast and vacuum‐deposited films of donors 1–5 were evaluated in solar cells with fullerene C60 as acceptor. A power‐conversion efficiency among the highest reported for bilayer devices of basic configuration was obtained with compound 2. On the other hand, the results obtained with 4 and 5 suggest that the presence of EDOT in the structure can have deleterious effects on the organization and performances of the donor material.
Mesoporous MnCo2O4 with a Flake‐Like Structure as Advanced Electrode Materials for Lithium‐Ion Batteries and Supercapacitors
Authors: Mondal Anjon Kumar , Su Dawei , Chen Shuangqiang , Ung Alison , Kim Hyun‐Soo , Wang Guoxiu 
Published: November 2014

AbstractA mesoporous flake‐like manganese‐cobalt composite oxide (MnCo2O4) is synthesized successfully through the hydrothermal method. The crystalline phase and morphology of the materials are characterized by X‐ray diffraction, field‐emission scanning electron microscopy, transmission electron microscopy, and Brunauer–Emmett–Teller methods. The flake‐like MnCo2O4 is evaluated as the anode material for lithium‐ion batteries. Owing to its mesoporous nature, it exhibits a high reversible capacity of 1066 mA h g−1, good rate capability, and superior cycling stability. As an electrode material for supercapacitors, the flake‐like MnCo2O4 also demonstrates a high supercapacitance of 1487 F g−1 at a current density of 1 A g−1, and an exceptional cycling performance over 2000 charge/discharge cycles.
Reversible Transformation between Cubane and Stairstep Cu4I4 Clusters Using Heat or Solvent Vapor
Authors: Cho Seonghwa , Jeon Youngeun , Lee Sangjin , Kim Jineun , Kim Tae Ho 
Published: November 2014

AbstractThe controlled self‐assembly of CuI and an asymmetric ligand with mixed N/S donors, 2‐(tert‐butylthio)‐N‐(pyridin‐3‐yl)acetamide (L), afforded three CuI coordination polymers (CPs), [Cu4I4L2(MeCN)2]n (1), [Cu4I4L2]n (2), and {[Cu4I4L2]⋅MeOH}n (3). X‐ray analyses showed that CPs 1–3 are supramolecular isomers with 1, 2, and 3D structures, respectively. CP 1 adopts a stairstep Cu4I4 cluster, whereas CPs 2 and 3 are composed of cubane‐like Cu4I4 clusters. Crystal‐to‐crystal transformations of 1 to 2 and 3 showed reversible transformations between different Cu4I4 clusters using heat or solvent (acetonitrile or methanol) vapor. CP 2 was reversibly transformed to 3 by the addition of methanol and heat. Therefore, the transformations between supramolecular isomers 1, 2, and 3 are completely reversible.
Platinum trans‐Bis(borirene) Complexes Displaying Coplanarity and Communication Across a Platinum Metal Center
Authors: Braunschweig Holger , Damme Alexander , Dewhurst Rian D. , Kelch Hauke , Macha Bret B. , Radacki Krzysztof , Vargas Alfredo , Ye Qing 
Published: November 2014

AbstractAmbient‐temperature photolysis of the aminoborylene complex [(OC)5CrBN(SiMe3)2] in the presence of a series of trans‐bis(alkynyl)platinum(II) precursors of the type trans‐[Pt(CCAr)2(PEt3)2] (Ar=Ph, p‐C6H4OMe, and p‐C6H4CF3) successfully leads to twofold transfer of the borylene moiety [:BN(SiMe3)2] onto the alkyne functionalities. The alkynyl precursors and resultant bis(borirene)platinum(II) complexes formed are of the type trans‐[Pt(B{N(SiMe3)2}CCAr)2(PEt3)2] (Ar=Ph, p‐C6H4OMe, and p‐C6H4CF3). These species have all been successfully characterized by NMR, IR, and UV/Vis spectroscopy as well as by elemental analysis. Single‐crystal X‐ray diffraction has verified that these trans‐bis(borirene)platinum(II) complexes display coplanarity between the twin three‐membered rings across the platinum core in the solid state and stand as the first examples of coplanar conformations of twin borirene systems. These complexes were modeled using density functional theory (DFT), providing information helpful in determining the ability of the transition metal core to interact with each individual borirene ring system and allowing for the observed coplanarity of these rings in the solid state. This proposed transition metal interaction with the twin borirene systems is manifested in the electronic characterization of these borirene species, which display divergent photophysical UV/Vis spectroscopic profiles compared to a previously published mono(borirene)platinum(II) complex.
ChemInform Abstract: Overcoming Carbon Deactivation in Biogas Reforming Using a Hydrothermally Synthesised Nickel Perovskite Catalyst.
Authors: Evans S. E. , Good O. J. , Staniforth J. Z. , Ormerod R. M. , Darton R. J. 
Published: November 2014

AbstractNi0.2Sr0.8ZrO3 catalyst is hydrothermally prepared from a stoichiometric mixture of ZrOCl2, Sr(NO3)2, and Ni(NO3)2 (autoclave, 180 °C, 72 h).
ChemInform Abstract: Solvothermal Synthesis of Bi2O2CO3 Nanoplates for Efficient Photodegradation of RhB and Phenol under Simulated Solar Light Irradiation.
Authors: Hu Sheng‐Peng , Xu Cheng‐Yan , Zhang Bao‐You , Pei Yi , Zhen Liang 
Published: November 2014

AbstractThe title nanoplates with an average width of 320 nm and thicknesses of 50—90 nm are solvothermally synthesized from mixtures of Bi(NO3)3, sodium dodecyl benzene sulfonate, polyethylene glycol, and H2O (autoclave, 180 °C, 20 h).
ChemInform Abstract: A Practical Source of Chlorodifluoromethyl Radicals. Convergent Routes to gem‐Difluoroalkenes and ‐dienes and (2,2‐Difluoroethyl)indoles, ‐azaindoles, and ‐naphthols.
Authors: Salomon Pierre , Zard Samir Z. 
Published: November 2014

AbstractAn efficient transformation of a diverse range of alkene derivatives (II) and (VI) to chlorodifluoromethyl derivatives (IV) and (VII) is developed using the addition reaction of chlorodifluoromethyl radicals generated from xanthogenate (I).
ChemInform Abstract: Palladium‐Catalyzed Oxidative Carbocyclization—Carbonylation of Allenynes and Enallenes.
Authors: Volla Chandra M. R. , Mazuela Javier , Baeckvall Jan‐E. 
Published: November 2014

AbstractThis new domino reaction of substrates of type (I), (VII), and (X) gives various cyclopentene diester derivatives.
ChemInform Abstract: New Simple Primary Amine—Thiourea Organocatalysts and Their Application in Asymmetric Conjugate Addition.
Authors: Yu Lu , Li Pengfei 
Published: November 2014

Abstract1‐((1R,2R)‐2‐aminocyclohexyl)‐3‐(9H‐fluoren‐9‐yl)thiourea in combination with 4‐methylbenzoic acid as additive catalyzes the reaction of 2‐aryl‐1‐nitroethylenes (I) with acetone (II) to give 4‐aryl‐2‐oxo‐5‐nitropentanes (III) in moderate yields and with good enantioselectivities.
ChemInform Abstract: A Simple and Eco‐Sustainable Method for the Sulfonylation of Amines under Microwave‐Assisted Solvent‐Free Conditions.
Authors: Lakrout Salah , K'tir Hacene , Amira Aicha , Berredjem Malika , Aouf Nour‐Eddine 
Published: November 2014

AbstractThe chemoselective sulfonylation of primary and secondary amines is carried out by microwave irradiation under solvent‐ and catalyst‐free conditions.
ChemInform Abstract: Electroreductive Coupling of Optically Active α,β‐Unsaturated Carbonyl Compounds with Diaryl Ketones: Asymmetric Synthesis of 4,5,5‐Trisubstituted γ‐Butyrolactones.
Authors: Kise Naoki , Hamada Yusuke , Sakurai Toshihiko 
Published: November 2014

AbstractThe electroreduction of (Ia) with acetophenone or cyclohexanone fails.
ChemInform Abstract: Homogenous Pd‐Catalyzed Asymmetric Hydrogenation of Unprotected Indoles: Scope and Mechanistic Studies.
Authors: Duan Ying , Li Lu , Chen Mu‐Wang , Yu Chang‐Bin , Fan Hong‐Jun , Zhou Yong‐Gui 
Published: November 2014

AbstractThis hydrogenation method works best for N‐unprotected indole substrates and gives the products in very good yields and with high enantioselectivities.
ChemInform Abstract: An Asymmetric Organocatalytic Quadruple Cascade to Tetraaryl‐Substituted 2‐Azabicyclo[3.3.0]octadienones.
Authors: Joie Celine , Deckers Kristina , Raabe Gerhard , Enders Dieter 
Published: November 2014

AbstractThe new asymmetric cascade reaction of α‐ketoamides with α,β‐unsaturated aldehydes proceeds via a quadruple aza‐Michael/aldol condensation/vinylogous Michael/aldol condensation sequence.
ChemInform Abstract: Aerobic Photooxidative Carbon—Carbon Bond Formation Between Tertiary Amines and Carbon Nucleophiles Using 2‐Chloroanthra‐9,10‐quinone.
Authors: Yamaguchi Tomoaki , Nobuta Tomoya , Tada Norihiro , Miura Tsuyoshi , Nakayama Tatsushi , Uno Bunji , Itoh Akichika 
Published: November 2014

AbstractThe N‐alkyl substituted substrate 2‐methyl‐1,2,3,4‐tetrahydroisoquinoline fails to react.
ChemInform Abstract: Regiospecific C—N Photocyclization of 2‐Styrylquinolines.
Authors: Gulakova Elena N. , Berdnikova Daria V. , Aliyeu Tseimur M. , Fedorov Yuri V. , Godovikov Ivan A. , Fedorova Olga A. 
Published: November 2014

AbstractIrradiation of 2‐styrylquinolines with full light of a Hg lamp results in formation of polycyclic products which are isolated as perchlorate.
ChemInform Abstract: Synthesis and Reactivity of Pyrrolo[3,2‐d][1,3]oxazine‐2,4‐dione. Access to New Pyrrolo[3,2‐e][1,4]diazepine‐2,5‐diones.
Authors: Malcor Jean‐Daniel , Brouillette Yann , Graffion Julien , Spielmann Kim , Masurier Nicolas , Maillard Ludovic T. , Martinez Jean , Lisowski Vincent 
Published: November 2014

AbstractEster (I), readily available from isoxazole in 3 steps, is transformed to the desired ring system (III) whose reactivity toward amines, thiols, alcohols, and amino acids is investigated.
ChemInform Abstract: Robust and Straightforward Chemo‐Enzymatic Enantiopure Dipeptide Syntheses and Diketopiperazines Thereof.
Authors: Pereira Pedro C. , Arends Isabel W. C. E. , Sheldon Roger A. 
Published: November 2014

AbstractPenicillin acylase mediated condensation of phenylglycyl amide with amino acids affords dipeptides such as (III), which can be easily converted into enantiopure diketopiperazines (IV) via cyclization of corresponding esters.
ChemInform Abstract: Oxygenated Xanthones and Biflavanoids from the Twigs of Garcinia xanthochymus.
Authors: Trisuwan Kongkiat , Boonyaketgoson Sirada , Rukachaisirikul Vatcharin , Phongpaichit Souwalak 
Published: November 2014

AbstractNew compounds (I)‐(III) (xanthochymones A‐C) are isolated together with six known compounds.
ChemInform Abstract: Synthesis and Characterization of Cu2ZnSnSe4 Nanocrystals Prepared by One Pot Route.
Authors: Wang Tingting , Chen Qinmiao , Chen Jin , Zhou Fangfang , Jia Zhen , Dou Xiaoming , Zhuang Songlin 
Published: November 2014

AbstractCu2ZnSnSe4 (CZTSe) nanocrystals are prepared via a one pot route using CuCl2, Zn(OAc)2, SnCl2, and Se (2:1.25:1:6, resp.) in oleylamine as surfactant and solvent.
Alkaline Stability of Quaternary Ammonium Cations for Alkaline Fuel Cell Membranes and Ionic Liquids
Authors: Marino M. G. , Kreuer K. D. 
Published: November 2014

AbstractThe alkaline stability of 26 different quaternary ammonium groups (QA) is investigated for temperatures up to 160 °C and NaOH concentrations up to 10 mol L−1 with the aim to provide a basis for the selection of functional groups for hydroxide exchange membranes in alkaline fuel cells and of ionic‐liquid cations stable in basic conditions. Most QAs exhibit unexpectedly high alkaline stability with the exception of aromatic cations. β‐Protons are found to be far less susceptible to nucleophilic attack than previously suggested, whereas the presence of benzyl groups, nearby hetero‐atoms, or other electron‐withdrawing species promote degradation reactions significantly. Cyclic QAs proved to be exceptionally stable, with the piperidine‐based 6‐azonia‐spiro[5.5]undecane featuring the highest half‐life at the chosen conditions. Absolute and relative stabilities presented herein stand in contrast to literature data, the differences being ascribed to solvent effects on degradation.
Effective Potential Theory: A Practical Way to Extend Plasma Transport Theory to Strong Coupling
Authors: Baalrud S.D. , Rasmussen K. Ø. , Daligault J. 
Published: November 2014

AbstractThe effective potential theory is a physically motivated method for extending traditional plasma transport theories to stronger coupling. It is practical in the sense that it is easily incorporated within the framework of the Chapman‐Enskog or Grad methods that are commonly applied in plasma physics and it is computationally efficient to evaluate. The extension is to treat binary scatterers as interacting through the potential of mean force, rather than the bare Coulomb or Debye‐screened Coulomb potential. This allows for aspects of many‐body correlations to be included in the transport coefficients. Recent work has shown that this method accurately extends plasma theory to orders of magnitude stronger coupling when applied to the classical one‐component plasma model. The present work shows that similar accuracy is realized for the Yukawa one‐component plasma model and it provides a comparison with other approaches. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Effect of warfarin on survival in patients with concomitant left ventricular systolic dysfunction and pulmonary hypertension: a population cohort study
Authors: Goudie Andrew , Elder Douglas , Deshmukh Harshal , Szwejkowski Benjamin R , Lang Chim C , George Jacob 
Published: November 2014

BackgroundThe use of oral anticoagulation in patients with heart failure in sinus rhythm remains controversial as previous large randomized controlled trials (RCTs) have not shown a survival benefit. However, heterogeneity exists among heart failure patients and it is possible that high‐risk subgroups may benefit from anticoagulation (warfarin). We hypothesize that one such subgroup are patients with heart failure and pulmonary hypertension (PH), conditions associated with coagulation abnormalities.MethodsWe conducted a retrospective, population‐based, longitudinal cohort study in patients with left ventricular systolic dysfunction (LVSD) and PH [defined as a right ventricular systolic pressure (RVSP) >35 mmHg] identified from echocardiograms performed between January 1994 to May 2011. This data was linked using a unique patient‐specific identifier to community‐dispensed prescriptions, hospital admissions, and mortality data. For comparison, we included patients with LVSD and no PH.ResultsA total of 2619 subjects with LVSD and a measurable RVSP were identified (mean ± SD age of 73 ± 12 years); 1606 out of 2619 had PH and 1013 out of 2619 had no PH. The overall mean follow‐up period was 2.56 ± 3.0 years. In patients with LVSD and PH, the use of warfarin was associated with an improved survival [hazard ratio (HR) = 0.72 95% confidence interval (CI) 0.58–0.90, P = 0.0003], fewer non‐cardiovascular disease‐related deaths (HR = 0.65, 95%CI 0.49–0.87, P = 0.0033 and showed a trend towards reduced cardiovascular disease‐associated mortality (HR = 0.72, 95%CI 0.51–1.02). Warfarin did not improve survival in those with LVSD with no PH.ConclusionsIn patients with both LVSD and PH, the use of warfarin is associated with a 28% reduction in mortality. Further prospective trials are required to confirm our findings.
Subclinical left ventricular dysfunction by echocardiographic speckle‐tracking strain analysis relates to outcome in sarcoidosis
Authors: Joyce Emer , Ninaber Maarten K. , Katsanos Spyridon , Debonnaire Philippe , Kamperidis Vasilis , Bax Jeroen J. , Taube Christian , Delgado Victoria , Ajmone Marsan Nina 
Published: November 2014

AimsLimited data exist on the risk of developing cardiac sarcoidosis (CS) and/or adverse events in sarcoidosis patients. Using LV global longitudinal strain (GLS), an emerging sensitive parameter of LV function, we evaluated the prevalence of subclinical cardiac dysfunction in sarcoidosis and investigated whether LVGLS predicts adverse outcomes in this population.Methods and resultsA total of 130 patients with proven sarcoidosis undergoing echocardiography at our referral centre were identified. Following exclusion of those with evidence of CS (n = 14) or other pre‐existing structural heart disease (n = 16), 100 patients (55 ± 13 years, 48% male, 90% pulmonary involvement) and 100 age‐ and gender‐matched controls were included. LVGLS was measured by speckle‐tracking analysis. The primary endpoint was a composite of all‐cause mortality, heart failure hospitalization, device implantation, new arrhythmias, or future development of CS on advanced cardiac imaging modalities. LVGLS was significantly impaired in sarcoidosis patients compared with controls (–17.3 ± 2.5 vs. –20.0 ± 1.6%, P < 0.001). Overall, 27 patients (27%) reached the endpoint during a median follow‐up of 35 months. On Cox proportional hazards model analysis, abnormal 24‐h Holter, larger LV end‐diastolic diameters, and more impaired LVGLS were significantly associated with the endpoint; however, only LVGLS remained independently associated on multivariate analysis [hazard ratio (HR) 1.4, 95% confidence interval (CI) 1.1–1.7, P = 0.006]. Patients with LVGLS less than –17.3% were significantly more likely to be free of the primary endpoint (log‐rank P = 0.01).ConclusionLVGLS is impaired in sarcoidosis patients, suggesting subclinical cardiac dysfunction despite the absence of conventional evidence of cardiac disease, and is independently associated with occurrence of cardiac events and/or development of CS.