化學(xué)

化學(xué)

封面介紹：The cover image presents the CH3NH3PbI3perovskite thin films，and the corresponding surface morphology and crystal structure. On page 576，DING et al. demonstrate that the CH3NH3PbI3thin films can be obtained by reacting PbO-PbI2hybrid films with CH3NH3I vapor，and the uniform surface morphology and suitable photoelectrical properties show that the prepared CH3NH3PbI3thin films can be employed in photovoltaic devices.

PbO-PbI2復(fù)合物膜轉(zhuǎn)化的CH3NH3PbI3鈣鈦礦薄膜及其光電特性

丁緒坤，李效民，高相東，等

有機-無機鹵化物鈣鈦礦是一類優(yōu)異的光電材料.在過去四年內(nèi)，基于有機-無機鹵化物鈣鈦礦的光電器件實現(xiàn)了超過15%的光電轉(zhuǎn)換效率.而有機-無機鹵化物鈣鈦礦材料的可控制備是保證其在光電器件中應(yīng)用的基礎(chǔ).本文采用新的沉積方法在玻璃襯底表面制備了一種典型的有機-無機鹵化物鈣鈦礦 CH3NH3PbI3薄膜.其制備過程是： 采用超聲輔助的連續(xù)離子吸附與反應(yīng)法在玻璃襯底表面沉積PbO-PbI2復(fù)合物膜，之后與CH3NH3I蒸汽在110℃環(huán)境下反應(yīng)，將PbO-PbI2復(fù)合物膜轉(zhuǎn)化成CH3NH3PbI3鈣鈦礦薄膜.對CH3NH3PbI3薄膜的微觀結(jié)構(gòu)，結(jié)晶性及其光電性能等進(jìn)行了表征.結(jié)果表明，CH3NH3PbI3薄膜呈晶態(tài)，具有典型的鈣鈦礦晶體結(jié)構(gòu).薄膜表面形貌均勻，晶粒尺寸超過400 nm.在可見光范圍，CH3NH3PbI3薄膜透過率低于10%，能帶寬度為1.58 eV.電學(xué)性能研究表明CH3NH3PbI3薄膜表面電阻率高達(dá)1000 M?.高表面電阻率表明CH3NH3PbI3薄膜具有一定的介電性能，其介電常數(shù)（εr）在100 Hz時達(dá)到155.本研究提出了一種制備高質(zhì)量CH3NH3PbI3鈣鈦礦薄膜的新方法，所得CH3NH3PbI3薄膜可望在光、電及光電器件中得到應(yīng)用.

CH3NH3PbI3；薄膜；鈣鈦礦；連續(xù)離子吸附與反應(yīng)法；氣相過程；光電材料

來源出版物：物理化學(xué)學(xué)報，2015，31（3）： 576-582聯(lián)系郵箱：李效民，lixm@mail.sic.ac.cn

封面介紹：A novel copper-catalyzed tandem coupling/isomerization reaction of alkynyl bromides and secondary propargylic alcohols in piperidine has been developed by Bi et al. on page 610，thereby allowing for the stereoselective synthesis of 1，5-disubstituted（E）-pent-2-en-4-yn-1-ones in 40%～83% yields.

銅催化炔基溴與丙炔醇的偶聯(lián)-異構(gòu)化反應(yīng)合成戊炔烯酮

楊宗蓮，廖沛球，李興奇，等

摘要：乙炔溴和丙炔醇在哌啶溶劑中，用醋酸銅作催化劑，能夠發(fā)生偶聯(lián)-異構(gòu)化反應(yīng)獲得具有立體選擇性的唯一產(chǎn)物（E）-1，5-二取代-戊-2-烯-4-炔-1-酮.機理研究表明，哌啶在反應(yīng)體系中起到了溶劑和堿的雙重作用.該反應(yīng)具有簡單、高效、反應(yīng)范圍寬泛等特點，能夠以40%～83%的產(chǎn)率獲得目標(biāo)產(chǎn)物反式1，5-二取代的戊炔烯酮.

關(guān)鍵詞：戊炔烯酮；乙炔溴；丙炔醇；偶聯(lián)-異構(gòu)化反應(yīng)

來源出版物：有機化學(xué)，2015，35（3）： 610-617

聯(lián)系郵箱：畢錫和，bixh507@nenu.edu.cn

來源出版物：Chinese Chemical Letters，2015，26（2）： 167-172

聯(lián)系郵箱：Isao Noda，noda@udel.edu

從反應(yīng)化學(xué)原理到工業(yè)應(yīng)用ⅠS Zorb 技術(shù)特點及優(yōu)勢

龍軍，林偉，代振宇

摘要：對S Zorb技術(shù)反應(yīng)化學(xué)進(jìn)行了導(dǎo)向性基礎(chǔ)研究.獲得S Zorb技術(shù)是一種催化裂化含硫汽油流化床超深度高選擇性催化加氫轉(zhuǎn)化脫硫的認(rèn)識；獲得了S Zorb技術(shù)通過在加氫催化劑中引入ZnO組元，與加氫活性金屬組元形成協(xié)同，在反應(yīng)過程中在線快速轉(zhuǎn)化催化加氫脫硫生成的 H2S，從而克服了催化加氫脫硫熱力學(xué)平衡限制難題，提高了脫硫轉(zhuǎn)化深度的認(rèn)識，同時獲得該協(xié)同作用創(chuàng)造性地在催化加氫脫硫反應(yīng)系統(tǒng)內(nèi)建立了一個極低H2S分壓反應(yīng)環(huán)境，避免了H2S與汽油中高辛烷值烯烴組分生成硫醇的副反應(yīng)、使催化劑活性金屬Ni在反應(yīng)過程中保持于零價態(tài)成為可能的認(rèn)識，獲得零價態(tài)金屬Ni具有對噻吩硫化物很高的吸附活性、對高辛烷值烯烴、芳烴組分僅有很低的吸附活性的認(rèn)識.在此基礎(chǔ)上，提煉出了S Zorb技術(shù)催化加氫脫硫與ZnO在線轉(zhuǎn)化H2S協(xié)同脫硫機理，提煉出了S Zorb技術(shù)流程中諸技術(shù)環(huán)節(jié)的工作原理，提煉出使S Zorb技術(shù)實現(xiàn)既超深度脫硫又保持辛烷值的關(guān)鍵技術(shù)措施.

關(guān)鍵詞：清潔汽油；加氫脫硫；化學(xué)；S Zorb

來源出版物：石油學(xué)報（石油加工），2015，31（1）： 1-6聯(lián)系郵箱：龍軍，longjun.ripp@sinopec.com

封面介紹：The cover picture shows a new and expeditious approach for the identification and quantification of 15 phthalate plasticizers in beverages. Phthalates are legally regulated in foods and beverages in Europe，USA and China because of their potential healthy threaten. By a combined SPME and DART-FTICR-MS approach，phthalates at sub-ng·mL-1levels can be accurately analyzed in a short time，the limits of quantification（LOQs）were estimated to be at 0.3-5.0 ng·mL-1. This rapid and easy-to-use method provided a relatively high-throughput and powerful analytical approach for quick testing and screening phthalates in beverages and water samples to ensure food safety. More details are discussed in the article by Guoet al. on page 213-219.

Combination of Solid-Phase Micro-Extraction and Direct Analysis in Real Time-Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for Sensitive and Rapid Analysis of 15 Phthalate Plasticizers in Beverages

Mengxi Wu，Haoyang Wang，Guoqing Dong，et al.

Abstract： A method for rapid identification and quantification of phthalate plasticizers in beverages was developed. A number of 15 phthalate plasticizers which covered all the phthalates concerned in the US Consumer Product Safety Improvement Act（CPSIA），European Union legislations and Chinese national standards（GB）were analyzed. By a combined solid-phase micro-extraction（SPME）and direct analysis in real time mass spectrometry（DART-MS）approach，phthalates at sub-ng·mL-1levels can be qualitatively and quantitatively analyzed in a short time. The use of ultrahigh-resolving power and the accurate mass measurement capacity naturally provided by Fourier transform ion cyclotron resonance mass spectrometry（FT-ICR-MS）minimizes the matrix interferences and thus enables the evaluation of phthalates in a complex matrix without extensive sample handlings or preparations. The limits of quantification（LOQs）were estimated to be at 0.3-5.0 ng·mL-1，lower than the Maximum Residue Limit（MRL）regulated by the European Union legislations（2007/19/EC）in foods，beverages，food packaging and toys（0.3-30 ng·mL-1）. This rapid and easy-to-use SPME-DART-FT-ICR-MS method provided a relatively high-throughput and powerful analytical approach for quick testing and screening phthalates in beverages and water samples to ensure food safety.

Keywords： solid-phase micro-extraction； direct analysis in real time； Fourier transform ion cyclotron resonance mass spectrometry；phthalates

來源出版物：Chinese Journal of Chemistry，2015，33（2）： 213-219聯(lián)系郵箱：Yinlong Guo，Ylguo Guo@jlu.edu.cn

Recent developments in two-dimensional（2D）correlation spectroscopy

Isao Noda

Recent noteworthy developments in the field of two-dimensional（2D）correlation spectroscopy are reviewed. 2D correlation spectroscopy has become a very popular tool due to its versatility and relative ease of use. The technique utilizes a spectroscopic or other analytical probe from a number of selections for a broad range of sample systems by employing different types of external perturbations to induce systematic variations in intensities of spectra. Such spectral intensity variations are then converted into 2D spectra by a form of correlation analysis for subsequent interpretation. Many different types of 2D correlation approaches have been proposed. In particular，2D hetero-correlation and multiple perturbation correlation analyses，including orthogonal sample design scheme，are discussed in this review. Additional

to other important developments in the field of 2D correlation spectroscopy，such as projection correlation and codistribution analysis，were also provided.

Two-dimensional correlation spectroscopy； Hetero-correlation； Multiple perturbation correlation； Orthogonal sample design