(2,2'-bipyridine)bis(3,5-dimethylpyrazolato)platinum(II) | 72871-06-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: (2,2'-bipyridine)bis(3,5-dimethylpyrazolato)platinum(II)
• 英文别名: (2,2'-bipyridine)bis(3,5-dimethylpyrazolato-N)platinum(II)；3,5-dimethylpyrazol-2-ide;platinum(2+);2-pyridin-2-ylpyridine
• CAS: 72871-06-8
• 化学式: C₂₀H₂₂N₆Pt
• 分子量: 541.515
• InChiKey: LYWXPYZGWGYTNP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.45
• 重原子数：
  27
• 可旋转键数：
  0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  53.6
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (2,2'-bipyridine)bis(3,5-dimethylpyrazolato)platinum(II) 、 三氟乙酸 以 甲醇 、 乙醇 为溶剂， 生成 (2,2'-bipyridine)bis(3,5-dimethylpyrazole)platinum(II)(2+)
  参考文献：
  名称：

  Lowest Electronic Excited States of Platinum(II) Diimine Complexes

  摘要：

  Absorption and emission spectra of Pt(diimine)L-2 complexes (diimine = 2,2'-bipyridine (bpy) or 4,4'-dimethyl-2,2'-bipyridine (dmbpy); L = pyrazolate (pz(-)), 3,5-dimethylpyrazolate (dmpz(-)), or 3,4,5-trimethylpyrazolate (tmpz(-))) have been measured. Solvent-sensitive absorption bands (370-440 nm) are attributed to spin-allowed metal-to-ligand charge-transfer ((MLCT)-M-1) transitions. As solids and in 77 K glassy solution, Pt(bpy)(pz)2 and Pt(dmbpy)(pz)(2) exhibit highly structured emission systems (lambda(max) approximate to 494 nm) similar to those of the diprotonated forms of these complexes. The highly structured bands (spacings 1000-1400 cm(-1)) indicate that the transition originates in a diimine-centered (3)(pi-->pi*) ((LL)-L-3) excited state. The intense solid-state and 77 K glassy solution emissions from (MLCT)-M-3[d(Pt)-->pi*(bpy)] excited states of complexes with dmpz(-) and tmpz(-) ligands occur at longer wavelengths (lambda(max) = 500-610 nm), with much broader vibronic structure. These findings are consistent with increasing electron donation of the pyrazolate ligands, leading to a distinct crossover from a lowest (LL)-L-3 to a (MLCT)-M-3 excited state.

  DOI：

  10.1021/ic991369w
• 作为产物：
  描述：

  (2,2-联吡啶)二氯铂(II) 在 KOH 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 为溶剂， 生成 (2,2'-bipyridine)bis(3,5-dimethylpyrazolato)platinum(II)
  参考文献：
  名称：

  唑类的金属衍生物。第4部分。铂（II）和钯（II）配合物

  摘要：

  [MCl 2（L–L）] [M = Pd或Pt，L–L = 1,2-双（二苯基膦基）乙烷（dppe），1,2-双（二苯基ar基）乙烷（dpae），2碱和唑[吡唑（Hpz），3,5-二甲基吡唑（3,5Me 2 -Hpz），吲唑，或四唑]或与吡唑酸钾一起生成[M（azolate- N）2（L–L）]复合物，其中的偶氮配体是未知的。当I 2或HCl裂解金属-氮键时，与HBF 4酸的反应提供单核或双核阳离子，[M（唑）2（L–L）] 2+或[（L–L）M （µ-pyrazolato- NN '）2 M（L–L）]分别为2+；后者的化合物含有杂的吡唑并-配体。

  DOI：

  10.1039/dt9790001851

文献信息

• Metal derivatives of azoles. Part 4. Platinum(II) and palladium(II) complexes
  作者：Giovanni Minghetti、Guido Banditelli、Flavio Bonati

  DOI：10.1039/dt9790001851

  日期：——

  The reaction of [MCl2(L–L)][M = Pd or Pt, L–L = 1,2-bis(diphenylphosphino)ethane (dppe), 1,2-bis(diphenylarsino)ethane (dpae), 2,2′-bipyridine (bipy), or cyclo-octa-1,5-diene (cod)] with alkali and an azole [pyrazole (Hpz), 3,5-dimethylpyrazole (3,5Me2-Hpz), indazole, or tetrazole] or with a potassium pyrazolate gives the [M(azolate-N)2(L–L)] complexes, where the azolato-ligands are unidentate. While

  [MCl 2（L–L）] [M = Pd或Pt，L–L = 1,2-双（二苯基膦基）乙烷（dppe），1,2-双（二苯基ar基）乙烷（dpae），2碱和唑[吡唑（Hpz），3,5-二甲基吡唑（3,5Me 2 -Hpz），吲唑，或四唑]或与吡唑酸钾一起生成[M（azolate- N）2（L–L）]复合物，其中的偶氮配体是未知的。当I 2或HCl裂解金属-氮键时，与HBF 4酸的反应提供单核或双核阳离子，[M（唑）2（L–L）] 2+或[（L–L）M （µ-pyrazolato- NN '）2 M（L–L）]分别为2+；后者的化合物含有杂的吡唑并-配体。
• Lowest Electronic Excited States of Platinum(II) Diimine Complexes
  作者：William B. Connick、Vincent M. Miskowski、Virginia H. Houlding、Harry B. Gray

  DOI：10.1021/ic991369w

  日期：2000.6.1

  Absorption and emission spectra of Pt(diimine)L-2 complexes (diimine = 2,2'-bipyridine (bpy) or 4,4'-dimethyl-2,2'-bipyridine (dmbpy); L = pyrazolate (pz(-)), 3,5-dimethylpyrazolate (dmpz(-)), or 3,4,5-trimethylpyrazolate (tmpz(-))) have been measured. Solvent-sensitive absorption bands (370-440 nm) are attributed to spin-allowed metal-to-ligand charge-transfer ((MLCT)-M-1) transitions. As solids and in 77 K glassy solution, Pt(bpy)(pz)2 and Pt(dmbpy)(pz)(2) exhibit highly structured emission systems (lambda(max) approximate to 494 nm) similar to those of the diprotonated forms of these complexes. The highly structured bands (spacings 1000-1400 cm(-1)) indicate that the transition originates in a diimine-centered (3)(pi-->pi*) ((LL)-L-3) excited state. The intense solid-state and 77 K glassy solution emissions from (MLCT)-M-3[d(Pt)-->pi*(bpy)] excited states of complexes with dmpz(-) and tmpz(-) ligands occur at longer wavelengths (lambda(max) = 500-610 nm), with much broader vibronic structure. These findings are consistent with increasing electron donation of the pyrazolate ligands, leading to a distinct crossover from a lowest (LL)-L-3 to a (MLCT)-M-3 excited state.