[Ni(CO)4]和[Ni(CN)4]2-都是抗磁性的,两者在结构上是否相同?试用配位化合物的价
[Ni(CO)4]和[Ni(CN)4]2-都是抗磁性的,两者在结构上是否相同?试用配位化合物的价键理论给予说明。
[Ni(CO)4]和[Ni(CN)4]2-都是抗磁性的,两者在结构上是否相同?试用配位化合物的价键理论给予说明。
命名下列配合物并指出中心离子、配体、配位原子、配位数、配离子电荷.
[CoCl3(NH3)3] 、K2[Ni(CN)4]、Na3[SiF6]、K3[Fe(SCN)6]
下列各个配位离子分别具有八面体(六配位)和四面体(四配位)构型,由它们组成的配合物哪些能给出顺磁共振信号。
(1)[Fe(H2O6)]2+;
(2)[Fe(CN)6]6-;
(3)[Fe(CN)6]3-;
(4)[CoF6]3-;
(5)[Co(en)3]3+;
(6)[C(N02)6]4-;
(7)[FeCl4]-;
(8)[Ag(NH3)4]+;
(9)[ZnCl4]2-。
Which of the following statements are correct?
(1) Co X is the taxpayer for China enterprise income tax (EIT)
(2) Co Y is the withholding agent for China EIT
(3) Co A is the withholding agent for China EIT
(4) The EIT should be filed at the place where Co
A.is located A 1 and 2
B.1, 3 and 4
C.1 and 4 only
D.3 and 4 only
写出下列分子的结构式,使其符合十八电子规则:
(1)V2(CO)12;
(2)Ni2(CO)2(C¿214215¿H5)2(羰基成桥);
(3)Cr2(CO)4[C5H5]2;
(4)[Cp3Mo3(CO)5(3-S)]+;
(5)[H5Re3(CO)10]-(有2个Re—Re单键,1个ReRe双键)。
Which of the following would be appropriate ways for Helot Co to close a cost gap?
(1) Buy cheaper, lower grade plastic for the game discs and cases
(2) Using standard components wherever possible in production
(3) Employ more trainee game designers on lower salaries
(4) Use the company’s own online gaming websites for marketing
A.1, 2 and 3
B.1, 3 and 4
C.2 and 4
D.2 and 3 only
(1)[Mn(C2O4)3]3-(高自旋),[Mn(CN)6]3-(低自旋);
(2)[Fe(en)3]3+(高自旋),[Fe(CN)6]3-(低自旋);
(3)[CoF6]3-(高自旋),[Co(en)3]3+(低自旋)