Disclosed herein are embodiments of a bi-functionalized dicyclopentadiene monomer and polymer embodiments formed therefrom. The monomer embodiments exhibit tunability and can be used to form thermally stable homopolymers, copolymers, and/or crosslinked polymers.

Disclosed are organic compounds including a structure of formula (I-1). Also provided are mixtures containing the organic compounds, and at least one organic functional material. Further provided are organic electronic devices containing a functional layer, the functional layer comprises the organic compounds. The present disclosure can achieve better device performance through device structure optimization, especially to achieve high-performance OLED devices, which provides better material and preparation technology options for full-color display and lighting applications.

A ligand of formula (I) ##STR00001## wherein L is a divalent bridge selected from R.sub.2C, R.sub.2CCR.sub.2, R.sub.2Si, R.sub.2SiSiR.sub.2, R.sub.2Ge, wherein each R is independently a hydrogen atom, C.sub.1-20-hydrocarbyl, tri(C.sub.1-20-alkyl)silyl, C.sub.6-20-aryl, C.sub.7-20-arylalkyl or C.sub.7-20-alkylaryl; R.sup.2 and R.sup.2 are each independently a C.sub.1-20 hydrocarbyl radical; R.sup.5 is a C.sub.1-20 hydrocarbyl group; R.sup.6, R.sup.6, R.sup.7 and R.sup.7 are each independently hydrogen or a C.sub.1-20 hydrocarbyl group; Ar and Ar are independently an aryl or heteroaryl group having up to 20 carbon atoms; each R.sup.1 is a C.sub.1-20 hydrocarbyl group or two R.sup.1 groups on adjacent carbon atoms taken together can form a fused 5 or 6 membered non aromatic ring with the Ar group; and each R.sup.4 is a C.sub.1-20 hydrocarbyl group; and the dotted lines represent a double bond present in between carbons 1 and 2 or 2 and 3 of the indenyl ring.

A ligand of formula (I) ##STR00001## wherein L is a divalent bridge selected from R.sub.2C, R.sub.2CCR.sub.2, R.sub.2Si, R.sub.2SiSiR.sub.2, R.sub.2Ge, wherein each R is independently a hydrogen atom, C.sub.1-20-hydrocarbyl, tri(C.sub.1-20-alkyl)silyl, C.sub.6-20-aryl, C.sub.7-20-arylalkyl or C.sub.7-20-alkylaryl; R.sup.2 and R.sup.2 are each independently a C.sub.1-20 hydrocarbyl radical; R.sup.5 is a C.sub.1-20 hydrocarbyl group; R.sup.6, R.sup.6, R.sup.7 and R.sup.7 are each independently hydrogen or a C.sub.1-20 hydrocarbyl group; Ar and Ar are independently an aryl or heteroaryl group having up to 20 carbon atoms; each R.sup.1 is a C.sub.1-20 hydrocarbyl group or two R.sup.1 groups on adjacent carbon atoms taken together can form a fused 5 or 6 membered non aromatic ring with the Ar group; and each R.sup.4 is a C.sub.1-20 hydrocarbyl group; and the dotted lines represent a double bond present in between carbons 1 and 2 or 2 and 3 of the indenyl ring.

A heterophasic polypropylene resin comprising a polypropylene homopolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the xylene soluble fraction of the heterophasic polypropylene resin is in the range 20 to less than 50 wt %; the heterophasic polypropylene resin has an MFR2 of 0.01 to 50 g/10 min; the ethylene content of the xylene soluble fraction of the heterophasic polypropylene resin is in the range of at least 20 wt % to less than 50 wt %; the heterophasic polypropylene resin has a notched charpy impact strength at 20 C of at least 25 kJ/m.sup.2, preferably at least 50 kJ/m.sup.2; and wherein the MFR.sub.2 (Matrix)/MFR.sub.2(XS)5, preferably 10.