COMPUTERIZED SPIN TRAPPING DATA BASE

自旋捕获是一个强大而方便的 研究自由基反应的技术。的广度 应用范围从临床研究到高能物理。 该技术的参考文献已累计超过1500篇， 化学文摘. STDBII是一个自旋捕获数据库， 在IBM PC/AT和MacIntosh个人计算机上实现。 该软件包没有“附加组件”。“该计划是强大的 但用户友好;命令结构类似于熟悉的 1-2-3灯条菜单;搜索策略采用 示例查询（QBE）;任何字段的逻辑组合都是 使用AND、OR、NOR和EXCEPT完成。目前， STDBII（4.5）包含5，5-二甲基-1-吡咯啉-N-氧化物的文件 （DMPO）、α-苯基-N-叔丁基硝酮（PBN）、2-甲基-2- 亚硝基丙烷（MNP），α-（4-吡啶基-1-氧化物）-N-叔丁基 硝酮（POBN）、亚硝基杜烯（ND）和 3，5-二溴亚硝基苯磺酸盐（DBNBS）。其他数据 不太流行的陷阱被包括在一个全部捕获的文件中。如今 数据库文件有2200多个引用， 参数条目。STDBII文件包含以下信息：1）旋转 使用捕集器; 2）捕集自由基; 3）报告超精细分裂; 4） 溶剂; 5）g值（如果报告）; 6）如何使用 自由基的产生和观察; 7）完整的书目数据。的 最新版本（STDBII，4.5）也包含了尾旋的动力学数据 捕获率以及一个新的参数，NoH值（比 的aN/ aH），这已被证明是有用的DMPO的鉴定 加合物STDBII可以帮助研究人员：1）识别自旋 加合物从有时独特的超精细分裂参数; 2)作为自旋捕获文献的关键; 3）作为校正 公布的错误。STDBII现在可供研究人员 在NIEHS内外。修改了STDBII程序 以便用户可以将自己的数据添加到文件中。自旋捕集 数据库现在可通过因特网（http：// hippo.niehs.nih.gov/LMB/stdb/)

Spin trapping is a powerful and convenient technique for the study of free radical reactions. The breadth of applications ranges from clinical studies to high-energy physics. Over 1500 references to the technique have accumulated in Chemical Abstracts. STDBII, a spin trapping database, has been implemented on IBM PC/AT and MacIntosh personal computers. The package operates with no "add-ons." The program is powerful yet user-friendly; the command structure is similar to the familiar 1-2-3 light-bar menu; search strategy employs the method of Query-by-Example (QBE); logical combinations of any fields are accomplished by using AND, OR, NOR, and EXCEPT. Presently, STDBII (4.5) contains files for 5,5-dimethyl-1-pyrroline-N-oxide (DMPO), alpha-phenyl-N-tert-butyl nitrone (PBN), 2-methyl-2- nitrosopropane (MNP), alpha-(4-pyridyl-1-oxide)-N-tert-butyl nitrone (POBN), nitrosodurene (ND)and 3,5-dibromo-nitrosobenzene sulfonate (DBNBS). Data for other less popular traps are included in a catch-all file. Presently, the database files have more than 2200 references with over 9000 parameter entries. The STDBII files contain information on: 1) spin trap used; 2) radical trapped; 3) hyperfine splittings reported; 4) solvent; 5) g- value, if reported; 6) a terse description of how the radical was produced and observed; 7) full bibliographic data. The latest version (STDBII, 4.5) also contains kinetic data on spin trapping rates as well as a new parameter, the NoH value (the ratio of aN/ aH), which has proved useful for the identification of DMPO adducts. STDBII helps researchers: 1) in identification of spin adducts from the sometimes unique hyperfine splitting parameters; 2) as a key to the spin trapping literature 3) as a vehicle to correct published errors. STDBII is now available to researchers both inside and outside NIEHS. The STDBII program has been modified so that users can add their own data to the files. The spin trap database is now accessible via the Internet (http:// hippo.niehs.nih.gov/LMB/stdb/)