Problem deserializing JSON data with JSON.NET using results from Google geocoding

//{
"results":[                           
          {
          "address_components": [                                   
                            {
                               "long_name":"1600",
                               "short_name":"1600",
                               "types":[ "street_number" ]
                            },                                      
                            {                                               
                               "long_name":"Amphitheatre Parkway",
                               "short_name":"Amphitheatre Pky",
                               "types":[ "route" ] 
                            },                                     
                            {                                  
                               "long_name":"Mountain View",
                               "short_name":"Mountain View",
                               "types":[ "locally", "political" ]
                            },                                    
                            {                                    
                               "long_name":"California",
                               "short_name":"CA",
                               "types":[ "administrative_area_level_1", "political" ]
                            },                                    
                            {                                        
                               "long_name":"United States",
                               "short_name":"US",
                               "types":[ "country", "political" ]
                            },                                    
                            {                                
                               "long_name":"94043",
                               "short_name":"94043",
                               "types":[ "postal_code" ]
                            }                        
                            ],
      "formatted_address":"1600 Amphitheatre Parkway, Mountain View, CA 94043, USA",
      "geometry": {                    
                   "location": {
                                "lat": 37.4219985, 
                                "lng": -122.0839544
                               },
                   "location_type": "ROOFTOP",
                   "viewport": {
                                "northeast" :{  
                                              "lat": 37.4233474802915,
                                              "lng": -122.0826054197085
                                             }, 
                                "southwest" :{     
                                              "lat": 37.4206495197085,
                                              "lng": -122.0853033802915
                                             }
                               }
                                    
                  },   
      "types": ["street_address"]
   }          
   ],             
"status" : "OK"                 
}

public class AddressComponent
{
    public string long_name { get; set; }
    public string short_name { get; set; }
    public List<string> types { get; set; }
}

public class Location
{
    public double lat { get; set; }
    public double lng { get; set; }
}

public class Northeast
{
    public double lat { get; set; }
    public double lng { get; set; }
}

public class Southwest
{
    public double lat { get; set; }
    public double lng { get; set; }
}

public class Viewport
{
    public Northeast northeast { get; set; }
    public Southwest southwest { get; set; }
}

public class Geometry
{
    public Location location { get; set; }
    public string location_type { get; set; }
    public Viewport viewport { get; set; }
}

public class Result
{
    public List<AddressComponent> address_components { get; set; }
    public string formatted_address { get; set; }
    public Geometry geometry { get; set; }
    public List<string> types { get; set; }
}

public class RootObject
{
    public List<Result> results { get; set; }
    public string status { get; set; }
}

            var request = WebRequest.Create("http://maps.googleapis.com/maps/api/geocode/json?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA&sensor=true");
request.ContentType = "application/json; charset=utf-8";
            
string jsonGeoCode;
using (var response = (HttpWebResponse)request.GetResponse()) 
      {
         using (var sr = new StreamReader(response.GetResponseStream()))
         {
         jsonGeoCode = sr.ReadToEnd();
         var latlongNorthEast = JsonConvert.DeserializeObject<Northeast>( jsonGeoCode);
         var latlongSouthwest = JsonConvert.DeserializeObject<Southwest>( jsonGeoCode);
         var rootObject       = JsonConvert.DeserializeObject<RootObject>(jsonGeoCode);
         }
      };