铼、钌太阳能电池染料稳定性电喷雾质谱研究  

Study of stability rhenium (I) and ruthenium (II) solar cell dyes by ESI-MS

作　　者：孙世国[1] 彭孝军[1] 张蓉[1] 徐勇前[1] 

机构地区：[1]大连理工大学精细化工国家重点实验室,辽宁大连116012

出　　处：《大连理工大学学报》2005年第4期492-495,共4页Journal of Dalian University of Technology

基　　金：国家重点基础研究专项经费资助项目(2001CCA02500);国家自然科学基金资助项目(20128005)

摘　　要：利用电喷雾质谱(ESI-MS)对敏化纳米二氧化钛太阳能电池用染料2,2′-联吡啶-4,4′-二羧酸乙酯的铼络合物(络合物1)和钌络合物(络合物2)进行了分析,通过变换不同的源内CID电压,研究了络合物及其配体的稳定性.结果表明,由于络合物1的空间结构相对拥挤,随着CID电压升高,其中的吡啶配体容易发生离解并形成稳定的联吡啶三羰基配位离子[(4,4-(′COOEt)2-bpy)Re(CO)3]+.而络合物2在较高的CID电压下(110V)会发生联吡啶环上取代基的中性C2H4小分子丢失,其单电荷离子比二价电荷离子稳定.这些是影响太阳能电池用敏化染料稳定性的主要因素.Under different in-source CID （collision induced degradation） fragmentations, ESI-MS （electric spring ionization - mass spectra） of two dyes, 1（[（4,4＇-（COOEt）2-bpy） Re（CO）3pyPF6]）and 2（[Ru（bpy）2（4,4＇-（COOEt）2-bpy）2PF6]）, are studied to reveal the relationships between the fragmentations and stabilities of the ligands in the dyes which are used as sensitizers in nano TiO2 solar cells. It is demonstrated that the pyridyl ligand in complex 1 dissociates easily to become [（4,4＇-（COOEt）2-bpy）Re（CO）3]^＋ because of the relative crowded spacial configuration with the increase of CID fragmention. The substituted group on the bipyridyl ligand in complex 2 could lose C2H4 neutral molecule under a higher CID fragmentation （such as CID 110 V）, and its single charge ion is more stable than its double charge ion. All these might be the main factors affecting their stabilities when they are used as photosensitizers in solar cells.

关 键 词：电喷雾质谱 源内CID 铼联吡啶络合物 钌联吡啶络合物 

分 类 号：O657.63[理学—分析化学]