Synthesis and Catalytic Performances of a Novel Zn-MOF Catalyst Bearing Nickel Chelating Diimine Carboxylate Ligands for Ethylene Oligomerization

Table 2

Effects of temperature on the distribution of oligomer.

Entry	Cat.	/°C	Oligomer distribution				-Olefin/%	Ao	Ap
			C4/ΣC	C6/ΣC	C8/ΣC	≧C10/ΣC
1	A	0	29.8	30.9	34.8	4.5	37.0	0.9	trace
2	A	20	87.4	2.9	5.2	4.5	85.8	8.9	trace
3	A	40	39.9	26.1	26.8	7.2	55.3	1.1	0.02
4	A	60	20.1	37.0	39.1	3.8	30.3	0.76	trace
5	B	0	21.8	23.9	27.1	27.2	27.2	1.6	trace
6	B	20	58.9	14.4	10.5	16.2	50.2	12.0	trace
7	B	40	50.9	26.3	22.4	0.4	30.5	5.7	trace
8	B	60	38.9	26.7	28.9	5.5	27.7	1.2	—
9	C	0	59.4	6.1	9.5	25	28.1	10.9	—
10	C	20	37.7	18.5	22.5	21.3	23.7	4.7	—
11	C	40	35.9	14.3	11.6	38.2	43.9	2.9	—
12	C	60	26.9	21.1	17.1	34.9	15.1	1.6	—

Reaction conditions:  h,  mol/L, (Al)/(Ni) = 1000,  atm.