dilithium | 14452-59-6

• 分子结构分类: 无机化合物 - 均相金属化合物 - 均相碱金属化合物
• 英文名称: dilithium
• 英文别名: lithium dimer；(lithium)2；lithium2 cluster；lithium
• CAS: 14452-59-6
• 化学式: Li₂
• 分子量: 13.882
• InChiKey: SMBQBQBNOXIFSF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.76
• 重原子数：
  2
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  dilithium 、 Bi(III)2 生成
  参考文献：
  名称：

  Atomization energies of gaseous molecules of Li with Bi and Pb

  摘要：

  In continuation of an analysis of the saturated vapor over condensed phases of Li–Bi and Li–Bi–Pb alloys by mass spectrometry, the atomization energies of recently detected polyatomic molecules were determined. The following results were obtained:             These experimental values were compared with those calculated according to Pauling’s rule.

  DOI：

  10.1063/1.443253
• 作为产物：
  描述：

  lithium 以 neat (no solvent) 为溶剂， 生成 dilithium
  参考文献：
  名称：

  Preparation of a wave packet through a mixed level in Li2; predissociation of one member of the superposition

  摘要：

  Through a mixed level, which has characters of both the A(1)Sigma(u)(+) and b(3)Pi(u) states of Li-2, several singlet and triplet Rydberg states are accessed simultaneously using an ultrafast laser. The electronic, vibrational and rotational wave packets of these Rydberg states are detected. Since a single member of the excited superposition, 2(3)Sigma(g)(+) (v = 12, N = 16), is predissociative, the intensities of the quan turn beats that have a component of this state decrease much faster with time (approximate to250 ps) than the other stable states. The polarization dependence of the quantum beats is utilized to assign the spectra. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.cplett.2004.12.014
• 作为试剂：
  描述：

  N-[N-[ethoxy(methyl)phosphinyl]-L-phenylalanyl]-L-leucine 、 牛血清白蛋白 、 三甲基溴硅烷 、 甲醇 在 氩 、 水 、 dilithium 作用下， 以 二氯甲烷 、 三乙胺 、 水 为溶剂， 25.0 ℃ 、5.33 kPa 条件下， 反应 34.0h， 以to give an analytical sample (0.039 g.) of N-[N-[hydroxy(methyl)phosphinyl]-L-phenylalanyl]-L-leucine, dilithium salt的产率得到N-[N-[hydroxy(methyl)phosphinyl]-L-phenylalanyl]-L-leucine
  参考文献：
  名称：

  Phosphonamidate compounds

  摘要：

  公式为##STR1##的磷酸胺酯，其中X是氨基酸或酯。这些化合物具有血管紧张素转换酶抑制活性和脑啡肽酶抑制活性。因此，它们可用作降压和镇痛剂。

  公开号：

  US04432972A1

文献信息

• Stability and structure of LinH molecules (n=3–6): Experimental and density functional study
  作者：C. H. Wu、R. O. Jones

  DOI：10.1063/1.1648305

  日期：2004.3.15

  The molecules Li(3)H and Li(4)H have been identified in mass-spectrometric measurements over solutions of hydrogen in liquid Li, and the gaseous equilibria of the reactions: Li(3)H+Li=Li(2)H+Li(2), Li(3)H+Li(2)=Li(2)H+Li(3), Li(3)H+Li=LiH+Li(3), Li(3)H+LiH=2Li(2)H, and Li(4)H+Li(2)=Li(3)H+Li(3) have been measured. Density functional calculations of Li(n)H molecules (n=3-6) provide structures, vibrational

  Li（3）H和Li（4）H分子已在质谱测量中确定了液态Li中氢的溶液以及反应的气态平衡：Li（3）H + Li = Li（2）H + Li（2），Li（3）H + Li（2）= Li（2）H + Li（3），Li（3）H + Li = LiH + Li（3），Li（3）H + LiH已测定＝ 2Li（2）H，并且Li（4）H + Li（2）＝ Li（3）H + Li（3）。Li（n）H分子（n = 3-6）的密度泛函计算提供了这些分子的结构，振动频率，电离能和自由能函数，这些函数可用于估计这些反应的焓和氢的原子化能。 Li（3）H（119.4 kcal / mol）和Li（4）H（151.8 kcal / mol）。
• Phenylsulfonyl nitromethanes as aldose reductase inhibitors
  申请人：Imperial Chemical Industries PLC

  公开号：US05153227A1

  公开（公告）日：1992-10-06

  The invention concerns novel pharmaceutical compositions for use in the treatment of certain complications of diabetes and galactosemia and which contain a nitromethane derivative (or its non-toxic salt) as active ingredient. The nitromethane derivatives are inhibitors of the enzyme aldose reductase. Many of the inhibitors are novel and are provided, together with processes for their manufacture and use, as further features of the invention.

  这项发明涉及一种新型药物组合物，用于治疗糖尿病和半乳糖血症的某些并发症，并含有硝基甲烷衍生物（或其非毒性盐）作为活性成分。硝基甲烷衍生物是醛糖还原酶酶的抑制剂。其中许多抑制剂是新颖的，并且作为该发明的进一步特征，提供了它们的制造和使用过程。
• Multilayer film for packaging
  申请人：——

  公开号：US20010014384A1

  公开（公告）日：2001-08-16

  A multilayer film for packaging which is superior in, such as extensible elasticity, ability for adhering onto various surfaces, transparency, clear cutting performance, heat-sealability, resistance to fogging, resistance to break-through and ability for restoring from finger pressing and which comprises outer layers made of the outer layer resin composition (I) or (II) given below and an inner layer made of an inner layer resin composition composed of a higher melting component (III) and a softening component (IV) interposed between the outer layers, wherein the resin composition (I) comprises 59.5-99.5% by weight of (A) an ethylene/&agr;-olefin copolymer component, which is composed of at least one copolymer of ethylene and an &agr;-olefin having 3-20 carbon atoms and which has a melt flow rate (MFR) of 0.1-10 g/10 min. and a density of 0.850 g/cm 3 -0.910 g/cm 3 ; 0-40% by weight of (B) a high-pressure process low density polyethylene having a density of 0.915-0.930 g/cm 3 , and 0.5-10% by weight of (C) an anti-fogging agent, and wherein the resin composition (II) comprises 99.5-90% by weight of (D) an ethylene/vinyl acetate copolymer, which is a copolymer of ethylene and vinyl acetate and has a vinyl acetate content of 10-30% by weight and an MFR of 0.5-30 g/10 min., and 0.5-10% by weight of (C) anti-fogging agent.

  一种用于包装的多层薄膜，具有伸缩弹性、能够附着在各种表面上、透明、易于切割、热封性能、防雾性能、防穿透性和能够从手指按压中恢复等优点，包括由下列外层树脂组分(I)或(II)制成的外层和由高熔点组分(III)和软化组分(IV)组成的内层树脂组分组成的内层，其中树脂组分(I)包括：59.5-99.5重量％的(A)乙烯/α-烯烃共聚物组分，由乙烯和一种具有3-20个碳原子的α-烯烃的至少一种共聚物组成，具有熔融流速(MFR)为0.1-10 g/10 min.和密度为0.850 g/cm3-0.910 g/cm3；0-40重量％的(B)高压过程低密度聚乙烯，密度为0.915-0.930 g/cm3；0.5-10重量％的(C)防雾剂；树脂组分(II)包括：99.5-90重量％的(D)乙烯/醋酸乙烯共聚物，是乙烯和醋酸乙烯的共聚物，醋酸乙烯含量为10-30重量％，MFR为0.5-30 g/10 min.；0.5-10重量％的(C)防雾剂。
• Inhibitors of mammalian collagenase
  申请人：E. R. Squibb & Sons, Inc.

  公开号：US04235885A1

  公开（公告）日：1980-11-25

  Mammalian collagenase is inhibited by compounds having the formula ##STR1## and salts thereof, wherein R.sub.1 is hydrogen or alkanoyl of 2 to 10 carbon atoms; R.sub.2 is hydroxy, amino, or ##STR2## R.sub.3 is hydrogen, alkyl of 1 to 4 carbon atoms, ##STR3## R.sub.4 is hydroxy, amino, arginine, leucine, glutamine, alanine or glycine; and m is 0 or an integer of 1 to 9.

  哺乳动物胶原酶被具有以下公式和其盐的化合物所抑制：##STR1## 其中R.sub.1是氢或2到10个碳原子的脂肪酰基；R.sub.2是羟基，氨基或##STR2## R.sub.3是氢，1到4个碳原子的烷基，##STR3## R.sub.4是羟基，氨基，精氨酸，亮氨酸，谷氨酰胺，丙氨酸或甘氨酸; m为0或1到9的整数。
• Functionalized ethylene/vinyl or vinylidene aromatic interpolymers
  申请人：——

  公开号：US20020037988A1

  公开（公告）日：2002-03-28

  Novel substantially random functionalized interpolymers and processes for making them are disclosed. The novel interpolymers include those prepared from ethylene and vinyl aromatic monomers such as ethylene-styrene interpolymers which are then functionalized with a variety of electrophilic and nucleophilic reagents.

  本发明揭示了基本随机功能化互穿聚合物和制造它们的方法。这些新型互穿聚合物包括由乙烯和乙烯芳香单体制备而成的互穿聚合物，例如乙烯-苯乙烯互穿聚合物，然后使用各种亲电和亲核试剂进行功能化。