N-butyl-N',N'-dimethylselenourea | 91772-94-0

• 分子结构分类: 有机化合物 - 有机1,3-偶极化合物 - 炔丙基型1，3-偶极有机化合物
• 英文名称: N-butyl-N',N'-dimethylselenourea
• 英文别名: N'-butyl-N,N-dimethylcarbamimidoselenoic acid
• CAS: 91772-94-0
• 化学式: C₇H₁₆N₂Se
• 分子量: 207.177
• InChiKey: YITQPGHIHXBGBE-UHFFFAOYSA-N

物化性质

• 沸点：
  224.9±23.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  10
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  15.6
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  N-butyl-N',N'-dimethylselenourea 、 硫酸二甲酯 以 水 为溶剂， 生成 N,N-Dimethyl-N'-n-butyl-Se-methyl-isoselenoharnstoff
  参考文献：
  名称：

  Collard-Charon,C.; Renson,M., Bulletin des Societes Chimiques Belges, 1963, vol. 72, p. 149 - 165

  摘要：

  DOI：
• 作为产物：
  描述：

  异腈基正丁烷 、 二甲胺 在 selenium 作用下， 以 甲苯 为溶剂， 反应 1.0h， 以88%的产率得到N-butyl-N',N'-dimethylselenourea
  参考文献：
  名称：

  A Library of Selenourea Precursors to PbSe Nanocrystals with Size Distributions near the Homogeneous Limit

  摘要：

  We report a tunable library of N,N,N'-trisubstituted selenourea precursors and their reaction with lead oleate at 60-150 degrees C to form carboxylate-terminated PbSe nanocrystals in quantitative yields. Single exponential conversion; kinetics can be tailored over 4 orders of magnitude by adjusting the selenourea structure. The wide range of conversion reactivity allows the extent of nucleation ([nanocrystal] = 4.6-56.7 mu M) and the size following complete precursor conversion (d = 1.7-6.6 nm) to be controlled. Narrow size distributions (sigma = 0.5-2%) are obtained whose spectral line widths are dominated (73-83%) by the intrinsic single particle spectral broadening, as observed using spectral hole burning measurements. The intrinsic broadening decreases with increasing size (fwhm = 320-65 meV, d = 1.6-4.4 nm) that derives from exciton-phonon structure and exciton phonon coupling rather than broadening caused by the size distribution.

  DOI：

  10.1021/jacs.6b11021

文献信息

• Use of sulfur and selenium compounds as precursors to nanostructured materials
  申请人：THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

  公开号：US10253256B2

  公开（公告）日：2019-04-09

  The presently disclosed subject matter provides processes for preparing nanocrystals, including processes for preparing core-shell nanocrystals. The presently disclosed subject matter also provides sulfur and selenium compounds as precursors to nanostructured materials. The presently disclosed subject matter also provides nanocrystals having a particular particle size distribution.

  目前公开的主题提供了制备纳米晶体的过程，包括制备核壳纳米晶体的过程。目前公开的主题还提供硫和硒化合物作为纳米结构材料的前体。目前公开的主题还提供具有特定粒径分布的纳米晶体。
• Reaction of <i>N</i>,<i>N</i>-Dimethylselenocarbamoyl Chloride with Nucleophiles. Preparation of Diselenocarbamates, Selenothiocarbamates, and Selenoureas
  作者：Mamoru Koketsu、Yoshihisa Fukuta、Hideharu Ishihara

  DOI：10.1021/jo015872d

  日期：2002.2.1

  Reactions of N,N-dimethylselenocarbamoyl chloride prepared by using LiAlHSeH with nucleophiles such as lithium alkylselenolate, lithium alkylthiolate, and amines afford the corresponding diselenocarbamates, selenothiocarbamates, and selenoureas. The crystal structure of the Se-phenyl N,N-dimethyldiselenocarbamate was also determined by X-ray diffraction.
• A Library of Selenourea Precursors to PbSe Nanocrystals with Size Distributions near the Homogeneous Limit
  作者：Michael P. Campos、Mark P. Hendricks、Alexander N. Beecher、Willem Walravens、Robert A. Swain、Gregory T. Cleveland、Zeger Hens、Matthew Y. Sfeir、Jonathan S. Owen

  DOI：10.1021/jacs.6b11021

  日期：2017.2.15

  We report a tunable library of N,N,N'-trisubstituted selenourea precursors and their reaction with lead oleate at 60-150 degrees C to form carboxylate-terminated PbSe nanocrystals in quantitative yields. Single exponential conversion; kinetics can be tailored over 4 orders of magnitude by adjusting the selenourea structure. The wide range of conversion reactivity allows the extent of nucleation ([nanocrystal] = 4.6-56.7 mu M) and the size following complete precursor conversion (d = 1.7-6.6 nm) to be controlled. Narrow size distributions (sigma = 0.5-2%) are obtained whose spectral line widths are dominated (73-83%) by the intrinsic single particle spectral broadening, as observed using spectral hole burning measurements. The intrinsic broadening decreases with increasing size (fwhm = 320-65 meV, d = 1.6-4.4 nm) that derives from exciton-phonon structure and exciton phonon coupling rather than broadening caused by the size distribution.
• Collard-Charon,C.; Renson,M., Bulletin des Societes Chimiques Belges, 1963, vol. 72, p. 149 - 165
  作者：Collard-Charon,C.、Renson,M.

  DOI：——

  日期：——