chains. Similar complexes have been isolated directly from reaction of ScCl3·6H2O and the crown ethers in absolute ethanol, including [ScCl3(H2O)3]n·(crown) (n = 1 or 2, crown = 18-crown-6; n = 2, crown = 15-crown-5 or 12-crown-4). Hydrated scandium nitrate and the crown ethers react in ethanol solution to form a surprisingly diverse range of structural types containing the crown ethers hydrogen bonded
[ScCl(15-crown-5)(MeCN)] [SbCl 6 ] 2,[ScCl 2(18-crown-6)] [FeCl 4 ]和[ScCl 2([15] aneS 2 O 3)] [FeCl 4 ]([15] aneS 2 O 3 =1,4-二
硫-7,10,13-三氧杂
环戊烷),最后一个包含
硫醚-scan(III)配位的第一个例子。[ScCl(15-crown-5)(MeCN)] [SbCl 6 ] 2的结构揭示了五边形双锥体阳离子具有轴向Cl和MeCN,而[ScCl 2(18-crown-6)] [FeCl 4 ]也是具有轴向Cl的五角双锥体
配体。1 H和45 Sc NMR光谱已用于研究在无
水MeCN中
路易斯酸SbCl 5和FeCl 3存在下ScCl 3 / 18-crown-6系统中的形态。
水解以上任何一种配合物和[Sc(12-crown-4)2 ] 3+ (由ScCl 3(thf)3形成,王冠和SbCl